Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.g(x) = x2 - 4x + 8
A. 
Vertex (2, -4)
x-int = (0, 0), (4, 0);
y-int = (0, 0)
B. 
Vertex (-2, -4)
x-int = (-4, 0), (0, 0);
y-int = (0, 0)
C. 
Vertex (-2, 4)
no x-intercepts;
y-int = (0, 8)
D. 
Vertex (2, 4)
no x-intercepts;
y-int = (0, 8)
Answer: D
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A. 3.4765 B. 3.4794 C. 8.0084 D. 3.4780
Find the center, foci, and vertices of the ellipse.4x2 + 16y2 = 64
A. center at (0, 0)
foci at (-4, 0) and (4, 0)
vertices at (-16, 0), (16, 0)
B. center at (0, 0)
foci at (0, -2) and (0, 2)
vertices at (0, -4), (0, 4)
C. center at (0, 0)
foci at (0, - 2
) and (0, 2
)
vertices at (0, -4), (0, 4)
D. center at (0, 0)
foci at (- 2
, 0) and (2
, 0)
vertices at (-4, 0), (4, 0)
An object attached to a coiled spring is pulled down a distance a from its rest position and then released. Assuming that the motion is simple harmonic with period T, write an equation that relates the displacement d of the object from its rest position after t seconds. Also assume that the positive direction of the motion is up.a = 5;
T = 3 seconds
A. d = -3 cos 
B. d = -5 sin 
C. d = -5 cos 
D. d = -5 cos 
Use the circle graph to solve the problem.A survey of the 7409 vehicles on the campus of State University yielded the following circle graph.
Together, what percent of the vehicles are either vans or convertibles?
A. 18% B. 9% C. 162% D. 27%