Algebra 2 Unit 2 Practice Test

Identify ALL of the roots for the equation

3x² + 9 + 10x = 0

Choose the nature of the solutions for a quadratic equation with the following discriminant.

Discriminant = 18

• 2 complex solutions

• 2 real, rational solutions

• 2 real, irrational solutions

• 1 real, rational solution

• 1 complex solution

Choose the nature of the solutions for a quadratic equation with the following discriminant.

Discriminant = 0

• 2 complex solutions

• 2 real, rational solutions

• 2 real, irrational solutions

• 1 real, rational solution

• 1 complex solution

Choose the nature of the solutions for a quadratic equation with the following discriminant.

Discriminant = -5

• 2 complex solutions

• 2 real, rational solutions

• 2 real, irrational solutions

• 1 real, rational solution

• 1 complex solution

Choose the nature of the solutions for a quadratic equation with the following discriminant.

Discriminant = 4

• 2 complex solutions

• 2 real, rational solutions

• 2 real, irrational solutions

• 1 real, rational solution

• 1 complex solution

Look at the graph of f(x).

State the number and type of solutions to f(x)=0.

• 2 complex solutions

• 2 irrational solutions

• 1 rational solution

• 2 rational solutions

Myra’s tutor used these steps to solve the problem 10x²=90.

• Divide both sides by 10 to get x²=9.

• Take square roots on both sides to get x=±3.

Using this method, what is the solution to 5x²=605?

• ±11

• ±3

• ±121

• ±5

Look at the expression.
 $\sqrt{-16}-3\sqrt{-25}$  
Which expression is an equivalent form of the expression shown?

• -11i

• 4 + 15i

• 15 - 4i

• -19i

Which expression is equivalent to

(8 + 7i) − (1 − 9i)

• 7 + 16i

• 7 - 16i

• 7 - 2i

• 9 + 16i

What is the product of -3 + 2i and its conjugate?

• 13

• 5

• 5 + 12i

• -5 - 12i