Chapter 8
College Algebra · 401 exercises
Problem 26
For the following exercises, rewrite the given equation in standard form, and then determine the vertex \((V),\) focus \((F),\) and directrix \((d)\) of the parabola. $$ y^{2}-24 x+4 y-68=0 $$
4 step solution
Problem 26
For the following exercises, write the equation of an ellipse in standard form, and identify the end points of the major and minor axes as well as the foci. $$ 9 x^{2}+72 x+16 y^{2}+16 y+4=0 $$
7 step solution
Problem 26
For the following exercises, find the equations of the asymptotes for each hyperbola. $$ \frac{y^{2}}{3^{2}}-\frac{x^{2}}{3^{2}}=1 $$
3 step solution
Problem 26
Find the equations of the asymptotes for each hyperbola. \(\frac{y^{2}}{3^{2}}-\frac{x^{2}}{3^{2}}=1\)
3 step solution
Problem 27
For the following exercises, identify the conic with a focus at the origin, and then give the directrix and eccentricity. $$ r(2-\cos \theta)=1 $$
5 step solution
Problem 27
For the following exercises, convert the polar equation of a conic section to a rectangular equation. $$ r(2-\cos \theta)=1 $$
7 step solution
Problem 27
Convert the polar equation of a conic section to a rectangular equation. $$ r(2-\cos \theta)=1 $$
7 step solution
Problem 27
For the following exercises, rewrite the given equation in standard form, and then determine the vertex \((V),\) focus \((F),\) and directrix \((d)\) of the parabola. $$ x^{2}-4 x+2 y-6=0 $$
5 step solution
Problem 27
For the following exercises, find the foci for the given ellipses. $$ \frac{(x+3)^{2}}{25}+\frac{(y+1)^{2}}{36}=1 $$
5 step solution
Problem 27
For the following exercises, find the equations of the asymptotes for each hyperbola. $$ \frac{(x-3)^{2}}{5^{2}}-\frac{(y+4)^{2}}{2^{2}}=1 $$
5 step solution
Problem 27
Find the equations of the asymptotes for each hyperbola. \(\frac{(x-3)^{2}}{5^{2}}-\frac{(y+4)^{2}}{2^{2}}=1\)
5 step solution
Problem 28
For the following exercises, identify the conic with a focus at the origin, and then give the directrix and eccentricity. $$ r(2.5-2.5 \sin \theta)=5 $$
3 step solution
Problem 28
For the following exercises, convert the polar equation of a conic section to a rectangular equation. $$ r(2.5-2.5 \sin \theta)=5 $$
6 step solution
Problem 28
Convert the polar equation of a conic section to a rectangular equation. $$ r(2.5-2.5 \sin \theta)=5 $$
5 step solution
Problem 28
For the following exercises, rewrite the given equation in standard form, and then determine the vertex \((V),\) focus \((F),\) and directrix \((d)\) of the parabola. $$ y^{2}-6 y+12 x-3=0 $$
8 step solution
Problem 28
For the following exercises, find the foci for the given ellipses. $$ \frac{(x+1)^{2}}{100}+\frac{(y-2)^{2}}{4}=1 $$
4 step solution
Problem 28
For the following exercises, find the equations of the asymptotes for each hyperbola. $$ \frac{(y-3)^{2}}{3^{2}}-\frac{(x+5)^{2}}{6^{2}}=1 $$
5 step solution
Problem 28
For the following exercises, determine the angle ? that will eliminate the xy term and write the corresponding equation without the \(xy\) term. $$x^{2}+4 x y+4 y^{2}+3 x-2=0$$
6 step solution
Problem 28
Find the equations of the asymptotes for each hyperbola. \(\frac{(y-3)^{2}}{3^{2}}-\frac{(x+5)^{2}}{6^{2}}=1\)
5 step solution
Problem 29
For the following exercises, identify the conic with a focus at the origin, and then give the directrix and eccentricity. $$ r=\frac{6 \sec \theta}{-2+3 \sec \theta} $$
4 step solution
Problem 29
For the following exercises, convert the polar equation of a conic section to a rectangular equation. $$ r=\frac{6 \sec \theta}{-2+3 \sec \theta} $$
5 step solution
Problem 29
Convert the polar equation of a conic section to a rectangular equation. $$ r=\frac{6 \sec \theta}{-2+3 \sec \theta} $$
7 step solution
Problem 29
For the following exercises, rewrite the given equation in standard form, and then determine the vertex \((V),\) focus \((F),\) and directrix \((d)\) of the parabola. $$ 3 y^{2}-4 x-6 y+23=0 $$
4 step solution
Problem 29
For the following exercises, find the equations of the asymptotes for each hyperbola. $$ 9 x^{2}-18 x-16 y^{2}+32 y-151=0 $$
7 step solution
Problem 29
For the following exercises, determine the angle ? that will eliminate the xy term and write the corresponding equation without the \(xy\) term. $$x^{2}+4 x y+y^{2}-2 x+1=0$$
5 step solution
Problem 29
Find the equations of the asymptotes for each hyperbola. \(9 x^{2}-18 x-16 y^{2}+32 y-151=0\)
7 step solution
Problem 30
For the following exercises, identify the conic with a focus at the origin, and then give the directrix and eccentricity. $$ r=\frac{6 \csc \theta}{3+2 \csc \theta} $$
4 step solution
Problem 30
For the following exercises, convert the polar equation of a conic section to a rectangular equation. $$ r=\frac{6 \csc \theta}{3+2 \csc \theta} $$
9 step solution
Problem 30
Convert the polar equation of a conic section to a rectangular equation. $$ r=\frac{6 \csc \theta}{3+2 \csc \theta} $$
4 step solution
Problem 30
For the following exercises, rewrite the given equation in standard form, and then determine the vertex \((V),\) focus \((F),\) and directrix \((d)\) of the parabola. $$ x^{2}+4 x+8 y-4=0 $$
4 step solution
Problem 30
For the following exercises, find the foci for the given ellipses. $$ x^{2}+4 y^{2}+4 x+8 y=1 $$
8 step solution
Problem 30
For the following exercises, find the equations of the asymptotes for each hyperbola. $$ 16 y^{2}+96 y-4 x^{2}+16 x+112=0 $$
5 step solution
Problem 30
Find the equations of the asymptotes for each hyperbola. \(16 y^{2}+96 y-4 x^{2}+16 x+112=0\)
5 step solution
Problem 31
For the following exercises, graph the given conic section. If it is a parabola, label the vertex, focus, and directrix. If it is an ellipse, label the vertices and foci. If it is a hyperbola, label the vertices and foci. $$ r=\frac{5}{2+\cos \theta} $$
5 step solution
Problem 31
Graph the given conic section. If it is a parabola, label the vertex, focus, and directrix. If it is an ellipse, label the vertices and foci. If it is a hyperbola, label the vertices and foci. $$ r=\frac{5}{2+\cos \theta} $$
4 step solution
Problem 31
For the following exercises, graph the parabola, labeling the focus and the directrix. $$ x=\frac{1}{8} y^{2} $$
6 step solution
Problem 31
For the following exercises, find the foci for the given ellipses. $$ 10 x^{2}+y^{2}+200 x=0 $$
6 step solution
Problem 31
For the following exercises, sketch a graph of the hyperbola, labeling vertices and foci. $$ \frac{x^{2}}{49}-\frac{y^{2}}{16}=1 $$
6 step solution
Problem 31
Sketch a graph of the hyperbola, labeling vertices and foci. \(\frac{x^{2}}{49}-\frac{y^{2}}{16}=1\)
6 step solution
Problem 32
For the following exercises, graph the given conic section. If it is a parabola, label the vertex, focus, and directrix. If it is an ellipse, label the vertices and foci. If it is a hyperbola, label the vertices and foci. $$ r=\frac{2}{3+3 \sin \theta} $$
6 step solution
Problem 32
Graph the given conic section. If it is a parabola, label the vertex, focus, and directrix. If it is an ellipse, label the vertices and foci. If it is a hyperbola, label the vertices and foci. $$ r=\frac{2}{3+3 \sin \theta} $$
6 step solution
Problem 32
For the following exercises, graph the given ellipses, noting center, vertices, and foci. $$ \frac{x^{2}}{25}+\frac{y^{2}}{36}=1 $$
6 step solution
Problem 32
For the following exercises, sketch a graph of the hyperbola, labeling vertices and foci. $$ \frac{x^{2}}{64}-\frac{y^{2}}{4}=1 $$
5 step solution
Problem 32
For the following exercises, rotate through the given angle based on the given equation. Give the new equation and graph the original and rotated equation. $$x=y^{2}, \theta=45^{\circ}$$
4 step solution
Problem 32
For the following exercises, graph the parabola, labeling the focus and the directrix. $$y=36 x^{2}$$
7 step solution
Problem 32
Sketch a graph of the hyperbola, labeling vertices and foci. \(\frac{x^{2}}{64}-\frac{y^{2}}{4}=1\)
7 step solution
Problem 33
For the following exercises, graph the given conic section. If it is a parabola, label the vertex, focus, and directrix. If it is an ellipse, label the vertices and foci. If it is a hyperbola, label the vertices and foci. $$ r=\frac{10}{5-4 \sin \theta} $$
5 step solution
Problem 33
Graph the given conic section. If it is a parabola, label the vertex, focus, and directrix. If it is an ellipse, label the vertices and foci. If it is a hyperbola, label the vertices and foci. $$ r=\frac{10}{5-4 \sin \theta} $$
5 step solution
Problem 33
For the following exercises, graph the parabola, labeling the focus and the directrix $$ y=\frac{1}{36} x^{2} $$
5 step solution
Problem 33
For the following exercises, graph the given ellipses, noting center, vertices, and foci. $$ \frac{x^{2}}{16}+\frac{y^{2}}{9}=1 $$
6 step solution