Unit Test — Unit test Answers

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x = −4.25 and x = 8.25

x = −3.25 and x = 9.25 ✓ Correct

y = −4.25 and y = 8.25

y = −3.25 and y = 9.25

Which ordered pair is a solution of 9(x – 2)2 – 4(y + 5)2 ≥ 36?

(2, –3.5)

(2, 5.5)

(–7.5, –5)

(1.5, –5)

A parabola has the following properties.Vertex at (–2, 1)Directrix is x = 5Which equation represents this parabola?

(x + 2) = (y – 1)2

28(x + 2) = (y – 1)2

–28(x + 2) = (y – 1)2

(x + 2) = (y – 1)2

Review the graph.

x2 + y2 > 9 and y < –x2 + 2

x2 + y2 < 9 and y < –x2 + 2

x2 + y2 > 9 and x < –y2 + 2

x2 + y2 < 9 and x < –y2 + 2

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

(−13, 8) and (−1, 8)

(−12, 8) and (−2, 8)

(−7, 2) and (−7, 14)

(−7, 3) and (−7, 13)

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