Chapter 2 Review

Which is a function?

• W

• X

• Y

• Z

Which is a function?

• A

• B

• C

• D

Which of the following numbers is the value of g(x)  if  g(x) = 2x² + 4x – 8  is evaluated at  x = -3 ? 

• -2

• 2

• 4

• 8

Which parent function matches the graph?

• f(x) = x
• f(x)= x²
• f(x) = |x|
• f(x) = ab^x

Match the equation to its description.

• Right 2 and up 2
• Left 2 and up 2
• Right 2 and down 2
• Left 2 and down 2

• Constant

• Linear

• Absolute Value

• Cubic

Which set of ordered pairs is a function?

• {(9,5), (10,5), (9,-5), (10,-5)}

• {(3,4), (4,-3), (7,4), (3, 8)}

• {(6,-5), (7, -3), (8, -1), (9, 1)}

• {(2, -2), (5, 9), (5, -7), (1, 4)}

• x²+2x+3
• 4x²+3
• 2x²+3
• 2x²+6

• -42
• -26
• -18
• None of these.