Unit Test — Unit test

Question 1

In which quadrant is the number 6 – 8i located on the complex plane?

Revolt · Accepted Answer

IV

Question 2

For what values of m does the graph of y = 3x2 + 7x + m have two x-intercepts?

Revolt · Accepted Answer

m less-than StartFraction 49 Over 12 EndFraction

Question 3

Which equation is y = 9x2 + 9x – 1 rewritten in vertex form?

Revolt · Accepted Answer

y = 9 (x + one-half) squared minus thirteen-fourths

Question 4

Which equation has a graph that lies entirely above the x-axis?

Revolt · Accepted Answer

y = (x – 7)2 + 7

Question 5

Solve for in the equation .

Revolt · Accepted Answer

x = 4 ± 5i

Unit Test — Unit test Answers