Writing Two-Variable Quadratic Inequalities — Unit test

Question 1

Which equation represents a graph with a vertex at (1, –6)?

Revolt · Accepted Answer

y = 3x2 – 6x – 3

Question 2

Which equation is y = 3(x – 2)2 – (x – 5)2 rewritten in vertex form?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/evresources/3111-03-10/mc011-4.jpg

Question 3

Which expression is equivalent to (4 + 6i)2?

Revolt · Accepted Answer

–20 + 48i

Question 4

Which equation is an example of the commutative property of multiplication?

Revolt · Accepted Answer

(4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i)

Question 5

The graph of a quadratic inequality is shown.

Revolt · Accepted Answer

y greater-than-or-equal-to negative 2 (x + 4) squared + 28

Question 6

When graphed, which parabola opens downward?

Revolt · Accepted Answer

y = –3x2

Question 7

Which equation is y = –6x2 + 3x + 2 rewritten in vertex form?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/evresources/3111-03-10/mc009-3.jpg

Question 8

What is the sum of 12 – 5i and –3 + 4i?

Revolt · Accepted Answer

9 – i

Question 9

Which pair of complex numbers has a real-number product?

Revolt · Accepted Answer

(1 + 3i)(1 – 3i)

Question 10

Question is locked

Revolt · Accepted Answer

y less-than negative 3 x squared + 36 x minus 96

Writing Two-Variable Quadratic Inequalities — Unit test Answers