Chapter 10

Algebra 2 · 332 exercises

Problem 8

Find the distance between each pair of points with the given coordinates. $$ (-4.3,2.6),(6.5,-3.4) $$

4 step solution

Problem 9

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ 6 x^{2}+6 y^{2}=162 $$

4 step solution

Problem 9

Find the center and radius of the circle with the given equation. Then graph the circle. $$ (x-4)^{2}+y^{2}=\frac{16}{25} $$

4 step solution

Problem 9

Write each equation in standard form. Identify the vertex, axis of symmetry, and direction of opening of the parabola. $$ y=\frac{1}{2} x^{2}+12 x-8 $$

5 step solution

Problem 9

The map of a mall is overlaid with a numeric grid. The kiosk for the cell phone store is halfway between Terry's Ice Cream and the See Clearly eyeglass store. If the ice cream store is at \((2,4)\) and the eyeglass store is at \((78,46),\) find the distance the kiosk is from the eyeglass store.

4 step solution

Problem 10

Find the exact solution(s) of each system of equations. $$ \begin{array}{l}{x^{2}+y^{2}=36} \\ {y=x+2}\end{array} $$

7 step solution

Problem 10

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ 4 x^{2}+2 y^{2}=8 $$

4 step solution

Problem 10

Write each equation in standard form. Identify the vertex, axis of symmetry, and direction of opening of the parabola. $$ x=3 y^{2}+5 y-9 $$

4 step solution

Problem 10

Find the center and radius of the circle with the given equation. Then graph the circle. $$ \left(x+\frac{2}{3}\right)^{2}+\left(y-\frac{1}{2}\right)^{2}=\frac{8}{9} $$

5 step solution

Problem 10

Find the midpoint of the line segment with endpoints at the given coordinates. $$ (8,3),(16,7) $$

5 step solution

Problem 11

Find the exact solution(s) of each system of equations. $$ \begin{array}{l}{y^{2}+x^{2}=9} \\ {y=7-x}\end{array} $$

6 step solution

Problem 11

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ x^{2}=8 y $$

3 step solution

Problem 11

Graph each equation. $$ y=-\frac{1}{6} x^{2} $$

7 step solution

Problem 11

Find the center and radius of the circle with the given equation. Then graph the circle. $$ x^{2}+y^{2}+8 x-6 y=0 $$

6 step solution

Problem 11

Find the midpoint of the line segment with endpoints at the given coordinates. $$ (-5,3),(-3,-7) $$

4 step solution

Problem 12

Find the exact solution(s) of each system of equations. $$ \begin{array}{l}{\frac{x^{2}}{30}+\frac{y^{2}}{6}=1} \\ {x=y}\end{array} $$

5 step solution

Problem 12

Write an equation for the hyperbola that satisfies each set of conditions. vertices \((-5,0)\) and \((5,0),\) conjugate axis of length 12 units

5 step solution

Problem 12

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ 4 y^{2}-x^{2}+4=0 $$

4 step solution

Problem 12

Graph each equation. $$ x=\frac{1}{2} y^{2} $$

5 step solution

Problem 12

Find the center and radius of the circle with the given equation. Then graph the circle. $$ x^{2}+y^{2}+4 x-8=0 $$

6 step solution

Problem 12

Find the midpoint of the line segment with endpoints at the given coordinates. $$ (6,-5),(-2,-7) $$

5 step solution

Problem 13

Find the exact solution(s) of each system of equations. $$ \begin{array}{l} \frac{x^{2}}{36}-\frac{y^{2}}{4}=1 \\ x=y \end{array} $$

6 step solution

Problem 13

Write an equation for the hyperbola that satisfies each set of conditions. vertices \((0,-4)\) and \((0,4),\) conjugate axis of length 14 units

4 step solution

Problem 13

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ (x-1)^{2}-9(y-4)^{2}=36 $$

4 step solution

Problem 13

Graph each equation. $$ y=\frac{1}{3}(x+6)^{2}+3 $$

7 step solution

Problem 13

Write an equation for the ellipse that satisfies each set of conditions. endpoints of major axis at (-11, 5) and (7, 5), endpoints of minor axis at (-2, 9) and (-2, 1)

4 step solution

Problem 13

Find the midpoint of the line segment with endpoints at the given coordinates. $$ (5,9),(12,18) $$

4 step solution

Problem 14

Find the exact solution(s) of each system of equations. $$ \begin{array}{l}{4 x+y^{2}=20} \\ {4 x^{2}+y^{2}=100}\end{array} $$

6 step solution

Problem 14

Write an equation for the hyperbola that satisfies each set of conditions. vertices \((9,-3)\) and \((-5,-3),\) foci \((2 \pm \sqrt{53},-3)\)

6 step solution

Problem 14

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ y+4=(x-2)^{2} $$

4 step solution

Problem 14

Graph each equation. $$ y=-\frac{1}{2}(x-1)^{2}+4 $$

6 step solution

Problem 14

Write an equation for the ellipse that satisfies each set of conditions. endpoints of major axis at (2, 12) and (2, -4), endpoints of minor axis at (4, 4) and (0, 4)

4 step solution

Problem 14

GEOMETRY Triangle MNP has vertices \(M(3,5), N(-2,8),\) and \(P(7,-4) .\) Find the coordinates of the midpoint of each side.

4 step solution

Problem 15

Find the exact solution(s) of each system of equations. $$ \begin{array}{l}{y+x^{2}=3} \\ {x^{2}+4 y^{2}=36}\end{array} $$

4 step solution

Problem 15

Write an equation for the hyperbola that satisfies each set of conditions. vertices \((-4,1)\) and \((-4,9),\) foci \((-4,5 \pm \sqrt{97})\)

6 step solution

Problem 15

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ (y-4)^{2}=9(x-4) $$

3 step solution

Problem 15

Graph each equation. $$ 4(x-2)=(y+3)^{2} $$

6 step solution

Problem 15

Write an equation for the ellipse that satisfies each set of conditions. major axis 20 units long and parallel to y-axis, minor axis 6 units long, center at (4, 2)

4 step solution

Problem 15

REAL ESTATE In John's town, the numbered streets and avenues form a grid. He belongs to a gym at the corner of 12 th Street and 15 th Avenue, and the deli where he works is at the corner of 4 th Street and 5th Avenue. He wants to rent an apartment halfway between the two. In what area should he look?

4 step solution

Problem 16

Find the exact solution(s) of each system of equations. $$ \begin{array}{l}{x^{2}+y^{2}=64} \\ {x^{2}+64 y^{2}=64}\end{array} $$

6 step solution

Problem 16

Find the coordinates of the vertices and foci and the equations of the asymptotes for the hyperbola with the given equation. Then graph the hyperbola. $$ \frac{x^{2}}{81}-\frac{y^{2}}{49}=1 $$

5 step solution

Problem 16

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ x^{2}+y^{2}+4 x-6 y=-4 $$

4 step solution

Problem 16

Graph each equation. $$ (y-8)^{2}=-4(x-4) $$

4 step solution

Problem 16

Write an equation for the circle that satisfies each set of conditions. center \((0,3),\) radius 7 units

4 step solution

Problem 16

At its closest point, Venus is 0.719 astronomical units from the Sun. At its farthest point, Venus is 0.728 astronomical units from the Sun. Write an equation for the orbit of Venus. Assume that the center of the orbit is the origin, the Sun lies on the \(x\)-axis, and the radius of the Sun is 400,000 miles.

6 step solution

Problem 16

Find the distance between each pair of points with the given coordinates. $$ (-4,9),(1,-3) $$

5 step solution

Problem 17

Find the exact solution(s) of each system of equations. $$ \begin{array}{l}{y^{2}+x^{2}=25} \\ {y^{2}+9 x^{2}=25}\end{array} $$

5 step solution

Problem 17

Find the coordinates of the vertices and foci and the equations of the asymptotes for the hyperbola with the given equation. Then graph the hyperbola. $$ \frac{y^{2}}{36}-\frac{x^{2}}{4}=1 $$

6 step solution

Problem 17

Write each equation in standard form. State whether the graph of the equation is a parabola, circle, ellipse, or hyperbola. Then graph the equation. $$ x^{2}+y^{2}+6 y+13=40 $$

3 step solution

Problem 17

Graph each equation. $$ y=x^{2}-12 x+20 $$

5 step solution

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