Semester 2 - Test #8 - Practice: Multiple Choice
Semester 2 - Test #8 - Practice: Multiple Choice
Semester 2 - Test #8 - Practice: Multiple Choice
Multiple Choice
____
1. Write an equation of a parabola with a vertex at the origin and a focus at (2, 0).
____
____
2
4
____
____
____
____
____
y
4
2
2
4
____
Write an equation of an ellipse in standard form with the center at the origin and with the given
characteristics.
____ 10.
and vertices at
2
4
____ 15. Write an equation of an ellipse with center (3, 3), vertical major axis of length 12, and minor axis of length
6.
____ 16. Write an equation of an ellipse with center (3, 4), horizontal major axis of length 16, and minor axis of length
10.
____ 17. Find the foci of the ellipse with the equation
____ 18. In a factory, a parabolic mirror to be used in a searchlight was placed on the floor. It measured 50 centimeters
tall and 90 centimeters wide. Find the equation of the parabola.
y
80
60
40
20
40
20
20
40
____ 19. Find the foci of the ellipse with the equation
Identify the center and intercepts of the conic section. Then find the domain and range.
y
____ 20.
6
4
2
6 4 2
2
4
6
Short Answer
Graph each conic section. If it is a parabola, then name the vertex, focus, and directirix. If it is a circle,
then name the center and the radius. If it is an ellipse, then name the center, vertices, co-vertices, and
foci. If it is a hyperbola, then name the center, vertices, and foci.
21.
22.
23.
24.
25.
26. A satellite is launched in a circular orbit around Earth at an altitude of 120 miles above the surface. The
diameter of Earth is 7920 miles. Write an equation for the orbit of the satellite if the center of the orbit is the
center of the Earth labeled (0, 0).
27. An elliptical track has a major axis that is 80 yards long and a minor axis that is 72 yards long. Find an
equation for the track if its center is (0, 0) and the major axis is the x-axis.
28. Suppose that the path of a newly discovered comet could be modeled by using one branch of the equation
, where distances are measured in astronomical units. Name the vertices of the hyperbola and
then graph the hyperbola.
29. Find an equation that models the path of a satellite if its path is a hyperbola, a = 55,000 km, and c = 81,000
km. Assume that the center of the hyperbola is the origin and the transverse axis is horizontal.
Identify the conic section. Write the equation in standard form. If it is a parabola, give the vertex. If it
is a circle, give the center and radius. If it is an ellipse or a hyperbola, give the center and foci.
30.
31.
32.
33.
A
C
B
C
A
B
B
B
A
A
B
D
C
A
D
B
B
A
A
C
SHORT ANSWER
10
8
6
4
2
21.
10 8 6 4 2
2
8 10 x
4
6
8
10
The graph is a hyperbola that consists of two branches. Its center is at the origin. It has two lines of symmetry,
the x-axis and the y-axis.
y
8
6
4
2
22.
8 6 4 2
2
4
6
8
The graph is an ellipse. The center is at the origin. It has two lines of symmetry, the x-axis and the y-axis.
23. z
24. z
25. z
26.
27.
28. ( 2, 0)
y
4
2
2
4
29.
30.
31.
32.
33.