Chapter 10

Precalculus · 623 exercises

Problem 17

(A) sketch the curve represented by the parametric equations (indicate the orientation of the curve) and (b) eliminate the parameter and write the resulting rectangular equation whose graph represents the curve. Adjust the domain of the rectangular equation, if necessary. $$\begin{aligned} &x=t^{3}\\\ &y=t^{2} \end{aligned}$$

3 step solution

Problem 17

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Focus: \(\left(0, \frac{1}{2}\right)\)

3 step solution

Problem 17

Rotate the axes to eliminate the \(x y\) -term in the equation. Then write the equation in standard form. Sketch the graph of the resulting equation, showing both sets of axes. $$5 x^{2}-6 x y+5 y^{2}-12=0$$

4 step solution

Problem 17

Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. Vertices: (±6,0)\(;\) passes through the point (4,1)

3 step solution

Problem 18

Identify the conic and sketch its graph. $$r=\frac{6}{1+\cos \theta}$$

2 step solution

Problem 18

Test for symmetry with respect to the line \(\theta=\pi 2,\) the polar axis, and the pole. $$r^{2}=25 \sin 2 \theta$$

3 step solution

Problem 18

Find the inclination \(\theta\) (in radians and degrees) of the line with slope \(m\). $$m=-2$$

4 step solution

Problem 18

(A) sketch the curve represented by the parametric equations (indicate the orientation of the curve) and (b) eliminate the parameter and write the resulting rectangular equation whose graph represents the curve. Adjust the domain of the rectangular equation, if necessary. $$\begin{aligned} &x=t^{3}\\\ &y=t^{4} \end{aligned}$$

3 step solution

Problem 18

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Focus: \(\left(-\frac{3}{2}, 0\right)\)

3 step solution

Problem 18

Rotate the axes to eliminate the \(x y\) -term in the equation. Then write the equation in standard form. Sketch the graph of the resulting equation, showing both sets of axes. $$2 x^{2}+x y+2 y^{2}-8=0$$

4 step solution

Problem 18

Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. Vertices: (0,±5)\(;\) passes through the point (4,2)

4 step solution

Problem 19

Identify the conic and sketch its graph. $$r=\frac{2}{2-\cos \theta}$$

2 step solution

Problem 19

A point in polar coordinates is given. Convert the point to rectangular coordinates. $$(0, \pi)$$

3 step solution

Problem 19

Find the inclination \(\theta\) (in radians and degrees) of the line with slope \(m\). $$m=1$$

3 step solution

Problem 19

(A) sketch the curve represented by the parametric equations (indicate the orientation of the curve) and (b) eliminate the parameter and write the resulting rectangular equation whose graph represents the curve. Adjust the domain of the rectangular equation, if necessary. $$\begin{aligned} &x=t+1\\\ &y=\frac{t}{t+1} \end{aligned}$$

3 step solution

Problem 19

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Focus: (-2,0)

3 step solution

Problem 19

Rotate the axes to eliminate the \(x y\) -term in the equation. Then write the equation in standard form. Sketch the graph of the resulting equation, showing both sets of axes. $$13 x^{2}+6 \sqrt{3} x y+7 y^{2}-16=0$$

3 step solution

Problem 19

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. Then sketch the hyperbola using the asymptotes as an aid. $$x^{2}-y^{2}=1$$

5 step solution

Problem 20

Identify the conic and sketch its graph. $$r=\frac{4}{4+\sin \theta}$$

4 step solution

Problem 20

A point in polar coordinates is given. Convert the point to rectangular coordinates. $$(0,-\pi)$$

3 step solution

Problem 20

Find the inclination \(\theta\) (in radians and degrees) of the line with slope \(m\). $$m=2$$

3 step solution

Problem 20

(A) sketch the curve represented by the parametric equations (indicate the orientation of the curve) and (b) eliminate the parameter and write the resulting rectangular equation whose graph represents the curve. Adjust the domain of the rectangular equation, if necessary. $$\begin{aligned} &x=t-1\\\ &y=\frac{t}{t-1} \end{aligned}$$

3 step solution

Problem 20

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Focus: (0,-2)

3 step solution

Problem 20

Rotate the axes to eliminate the \(x y\) -term in the equation. Then write the equation in standard form. Sketch the graph of the resulting equation, showing both sets of axes. $$7 x^{2}-6 \sqrt{3} x y+13 y^{2}-64=0$$

5 step solution

Problem 20

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. Then sketch the hyperbola using the asymptotes as an aid. $$\frac{x^{2}}{9}-\frac{y^{2}}{25}=1$$

5 step solution

Problem 21

Identify the conic and sketch its graph. $$r=\frac{6}{2+\sin \theta}$$

3 step solution

Problem 21

A point in polar coordinates is given. Convert the point to rectangular coordinates. $$(3, \pi / 2)$$

4 step solution

Problem 21

Find the maximum value of \(|r|\) and any zeros of \(r\). $$r=4 \cos 3 \theta$$

3 step solution

Problem 21

Find the inclination \(\theta\) (in radians and degrees) of the line with slope \(m\). $$m=\frac{3}{4}$$

3 step solution

Problem 21

(A) sketch the curve represented by the parametric equations (indicate the orientation of the curve) and (b) eliminate the parameter and write the resulting rectangular equation whose graph represents the curve. Adjust the domain of the rectangular equation, if necessary. $$\begin{aligned} &x=2(t+1)\\\ &y=|t-2| \end{aligned}$$

4 step solution

Problem 21

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Directrix: \(y=1\)

3 step solution

Problem 21

Rotate the axes to eliminate the \(x y\) -term in the equation. Then write the equation in standard form. Sketch the graph of the resulting equation, showing both sets of axes. $$x^{2}+2 x y+y^{2}+\sqrt{2} x-\sqrt{2} y=0$$

4 step solution

Problem 21

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. Then sketch the hyperbola using the asymptotes as an aid. $$\frac{y^{2}}{25}-\frac{x^{2}}{81}=1$$

5 step solution

Problem 21

Find the standard form of the equation of the ellipse with the given characteristics. Vertices: (0,2),(8,2)\(;\) minor axis of length 2

3 step solution

Problem 22

Identify the conic and sketch its graph. $$r=\frac{9}{3-2 \cos \theta}$$

4 step solution

Problem 22

A point in polar coordinates is given. Convert the point to rectangular coordinates. $$(3,3 \pi / 2)$$

3 step solution

Problem 22

Find the inclination \(\theta\) (in radians and degrees) of the line with slope \(m\). $$m=\frac{1}{2}$$

2 step solution

Problem 22

(A) sketch the curve represented by the parametric equations (indicate the orientation of the curve) and (b) eliminate the parameter and write the resulting rectangular equation whose graph represents the curve. Adjust the domain of the rectangular equation, if necessary. $$\begin{aligned} &x=|t-1|\\\ &y=t+2 \end{aligned}$$

3 step solution

Problem 22

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Directrix: \(y=-2\)

3 step solution

Problem 22

Rotate the axes to eliminate the \(x y\) -term in the equation. Then write the equation in standard form. Sketch the graph of the resulting equation, showing both sets of axes. $$3 x^{2}-2 \sqrt{3} x y+y^{2}+2 x+2 \sqrt{3} y=0$$

5 step solution

Problem 22

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. Then sketch the hyperbola using the asymptotes as an aid. $$\frac{x^{2}}{36}-\frac{y^{2}}{4}=1$$

6 step solution

Problem 22

Find the standard form of the equation of the ellipse with the given characteristics. Vertices: (3,0),(3,10)\(;\) minor axis of length 4

3 step solution

Problem 23

Identify the conic and sketch its graph. $$r=\frac{3}{2+4 \sin \theta}$$

3 step solution

Problem 23

A point in polar coordinates is given. Convert the point to rectangular coordinates. $$(2,3 \pi / 4)$$

5 step solution

Problem 23

Sketch the graph of the polar equation using symmetry, zeros, maximum \(r\) -values, and any other additional points. $$r=4$$

3 step solution

Problem 23

Find the inclination \(\theta\) (in radians and degrees) of the line with slope \(m\). $$m=-\frac{5}{2}$$

3 step solution

Problem 23

(A) sketch the curve represented by the parametric equations (indicate the orientation of the curve) and (b) eliminate the parameter and write the resulting rectangular equation whose graph represents the curve. Adjust the domain of the rectangular equation, if necessary. $$\begin{aligned} &x=4 \cos \theta\\\ &y=2 \sin \theta \end{aligned}$$

4 step solution

Problem 23

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin. Directrix: \(x=-1\)

3 step solution

Problem 23

Rotate the axes to eliminate the \(x y\) -term in the equation. Then write the equation in standard form. Sketch the graph of the resulting equation, showing both sets of axes. $$9 x^{2}+24 x y+16 y^{2}+90 x-130 y=0$$

4 step solution

Problem 23

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. Then sketch the hyperbola using the asymptotes as an aid. $$\frac{y^{2}}{1}-\frac{x^{2}}{4}=1$$

5 step solution

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