Functions - Substitution

Functions - Substitution

Multiple Choice

Find  $g\left(5\right)$  when  $g\left(x\right)=2x-4$  

•  $g\left(5\right)=6$  

•  $g\left(5\right)=21$  

•  $g\left(5\right)=14$  

•  $g\left(5\right)=25-4$  

Multiple Choice

Find  $f\left(3\right)$  when  $f\left(x\right)=4x-9$  

•  $f\left(3\right)=34$  

•  $f\left(3\right)=3$  

•  $f\left(3\right)=21$  

•  $f\left(3\right)=43-9$  

Video

Word of caution it is American so instead of saying brackets they say parentheses

Multiple Choice

Given g(x) = 4x - 7, find g(-9).

• g(-9) = 29

• g(-9) = -43

• g(-9) = 43

• g(-9) = -29

Multiple Choice

Given h(x) = 5 - 9x, find h(8). 

• h(8) = -360
• h(8) = -67

Multiple Choice

Evaluate f(-2) if f(x) = x²+ 3

• -1
• 1
• 7
• -7

Multiple Choice

Find  $g\left(5\right)$  when  $g\left(x\right)=2x-4$  

•  $g\left(5\right)=6$  

•  $g\left(5\right)=21$  

•  $g\left(5\right)=14$  

•  $g\left(5\right)=25-4$  

Multiple Choice

Find  $g\left(5\right)$  when  $g\left(x\right)=2x-4$  

•  $g\left(5\right)=6$  

•  $g\left(5\right)=21$  

•  $g\left(5\right)=14$  

•  $g\left(5\right)=25-4$