Evaluate Functions Review

Evaluate Functions Review

Remember, to evaluate functions, substitute the given value in for x.

• For example, if

  • f(x) = 4x - 8, then f(3) = 4(3) - 8, which means f(3) = 4

  • g(x) = x² + 3x, then g(-1) = (-1)² + 3(-1), which means f(-1) = -2

Multiple Choice

Evaluate g(x) = 11 - x

for g(-7). 

• 4

• 17

• 18

• -77

Multiple Choice

Evaluate f(x)=x²-5x for f(4).

• -4

• 126

• 24

• 84

Multiple Choice

Evaluate g(x) = 3x² - 11 for g(-5).

• f(-5) = 64

• f(-5) = -86

• f(-5) = 214

• f(-5) = -7

Multiple Choice

Evaluate f(t)=-2t²+ 1 for f(-3).

• 19

• 37

• -17

• -11