Transformations of Quadratic Functions — Unit test

Question 1

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 2

For what values of m does the graph of y = mx2 – 5x – 2 have no x-intercepts?

Revolt · Accepted Answer

m less-than negative StartFraction 25 Over 8 EndFraction

Question 3

Solve for in the equation .

Revolt · Accepted Answer

x = 3 plus-or-minus StartRoot 23 EndRoot

Question 4

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

Revolt · Accepted Answer

y = 3x2 – 6x – 3

Question 5

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

Revolt · Accepted Answer

(1 + 3i)(1 – 3i)

Question 6

Using the quadratic formula to solve 11x2 – 4x = 1, what are the values of x?

Revolt · Accepted Answer

StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 15 EndRoot Over 11 EndFraction

Question 7

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

Revolt · Accepted Answer

–20 + 48i

Question 8

What is the value of i 97 – i?

Revolt · Accepted Answer

0

Question 9

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 10

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

Revolt · Accepted Answer

(4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i)

Transformations of Quadratic Functions — Unit test Answers