Evaluating Functions Intro

Evaluating Functions Intro

Multiple Choice

After listening to the recording, select which method you used from Unit 1 to solve algebraic expressions.

To evaluate the expression 2x + 4x -8 when x=2, you would do one of the following:

• 2x + 4x -8 when x=2

  2(2) + 4(2) -8

  4+8-8

  12-8

  4

Multiple Select

Evaluating a function is similar. After watching the video, which method would you prefer to use when evaluating functions?

• 
  

  $f\left(x\right)=2x^2-3x+1\ \ \ \ \ \ find\ f\left(2\right)$
  
  $2\left(2\right)^2-3\left(2\right)+1$
  8 -6+1
  2+1
  3

Open Ended

Evaluating Algebraic Expressions vs Evaluating Functions

Looking at the two previous examples, what similarities or differences did you notice when solving? List at least 1 similarity and 1 difference when evaluating expressions and functions.