ALEKS Algebra Fundamentals 2

Question 1

What is the value of f(3) if f(x) = 2x² - 5?

Accepted Answer

13

Answer

7

Answer

18

Answer

1

Question 2

Which of the following is NOT a function?

Accepted Answer

x = 3

Answer

y = x²

Answer

y = 2x + 1

Answer

y = |x|

Question 3

Solve the system: x + y = 7 and x - y = 3

Accepted Answer

x = 5, y = 2

Answer

x = 3, y = 4

Answer

x = 4, y = 3

Answer

x = 2, y = 5

Question 4

What is the product of (2x + 3)(x - 4)?

Accepted Answer

2x² - 5x - 12

Answer

2x² + 5x - 12

Answer

2x² - 5x + 12

Answer

x² - 5x - 12

Question 5

What are the solutions to x² - 5x + 6 = 0?

Accepted Answer

x = 2 and x = 3

Answer

x = -2 and x = -3

Answer

x = 1 and x = 6

Answer

x = 2 and x = -3

Question 6

If y varies directly with x and y = 15 when x = 3, what is y when x = 7?

Accepted Answer

35

Answer

21

Answer

30

Answer

14