Unit Test — Unit test

Question 1

What are the vertices of the hyperbola whose equation is = 1?

Revolt · Accepted Answer

(−13, 8) and (−1, 8)

Question 2

The cable for a certain suspension bridge is modeled by a parabola with vertex (0, 0) at the center of the bridge. At a point that is 150 ft from the center of the bridge, the height of the cable is 30 ft. Which equation represents the height of the cable at a distance x feet from the center?

Revolt · Accepted Answer

y = StartFraction 1 Over 750 EndFraction x squared

Question 3

Which statement describes the graph of y + 2 ≥ –4(x – 3)2?

Revolt · Accepted Answer

a parabola opening down, with shading above the vertex

Question 4

A graphic designer creates a logo in the shape of an ellipse. The equation , with units in centimeters, represents the outer edge of the logo. How tall is the logo?

Revolt · Accepted Answer

7.6 cm

Question 5

1.82.83.84.8

Revolt · Accepted Answer

2.8

Unit Test — Unit test Answers

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