Math Math Algebra and Functions 2

Question 1

Factor the expression x² − 9.

Accepted Answer

(x + 3)(x − 3)

Answer

(x + 9)(x − 1)

Answer

(x − 3)²

Answer

(x + 3)²

Question 2

If f(x) = 2x + 5, what is f(−3)?

Accepted Answer

-1

Answer

11

Answer

1

Answer

-11

Question 3

Solve the system: x + y = 8 and x − y = 2.

Accepted Answer

x = 5, y = 3

Answer

x = 3, y = 5

Answer

x = 6, y = 2

Answer

x = 4, y = 4

Question 4

What is the y-intercept of the line 3x + 2y = 12?

Accepted Answer

6

Answer

4

Answer

3

Answer

12

Question 5

Simplify: 3x² + 5x − 2x² + x

Accepted Answer

x² + 6x

Answer

x² + 4x

Answer

5x² + 6x

Answer

x² − 6x

Question 6

Which of the following is a solution to x² − 5x + 6 = 0?

Accepted Answer

x = 2

Answer

x = 1

Answer

x = 4

Answer

x = 5