A1 2.2 - Function Notation - Part 1

Unit 2 Lesson 2 (Pt 1)

Function Notation

Multiple Choice

What does f(x) represent?

• The product of f and x

• The output of the function (y)

• The standard form of the function

Multiple Choice

 $f\left(x\right)=4x+5$    What is the value of  $f\left(4\right)$  ?

• 21

• -11

• 25

• -31

Multiple Choice

 $f\left(x\right)=x+3$    What is the value of  $f\left(-5\right)$  ?

• -8

• -2

• -1

• -317

Multiple Choice

 $f\left(x\right)=x^2$    What is the value of  $f\left(-8\right)$  ?

• -64

• -16

• 16

• 64

Multiple Choice

 $f\left(x\right)=x^2-5x$    What is the value of  $f\left(4\right)$  ?

• -4

• 24

• 84

• 126