Inverse Functions and Piecewise Functions

What is f(6)?

• 20

• 33

• 3

• 3, -3

What does 5[ g(-6) ] -4[ f(-6) ] equal?

• -111

• -198

• 150

• -150

Find the inverse of f(x)=2x-1/3

• 1/2x-3

• 1/2x-1/6

• 1/2x+1/6

• 1/2x+2/3

An ​ (a)   takes a previously found result ( a y value) and returns it to its original value (x value). This means you are ​ (b)   a function

• function

• inverse

• 2 or more

• undoing

Find k so that each piecewise function is continuous:

• k= -10.5

• k= 10.5

• k= 6.5

• k= -6.5

(a) write a piece wise

(b) then determine what the charge will be for using 150 terms in a month

• A.) {15.95 + .27x; x ≤ 50

  {32.45+ .33( x-50); x > 50

  
  

  B.) $50.60

• A.) {15.95 + .33x; x ≤ 50

  {32.45+ .27( x-50); x > 50

  
  

  B.) $54.95

• A.) {15.95 + .33x

  {32.45+ .27(x-50)

  
  

  B.) $45.54

• A.) { 15.95 + .33x; x ≤ 15.95

  { 32.45+ .27( x-50); x > 15.95

  
  

  B.) $54.54

Q1. What is the value of x in the equation x^2 = 17?

• A) 9 - √17

• B) 4

• C) 2

• D) √8