Review of Functions

Function Vocab

100

True or False-A relation is a set of ordered pairs

What is TRUE?

200

The set of first coordinates of a relation or a function

What is Domain?

300

The set of second coordinates in a relation or a function

What is the range?

400

A relation that assigns exactly one value in the range to each value in the domain?

What is a function?

500

The test to tell if a graph is a function

What is the Vertical Line Test?

Evaluating Function Rules

100

Evaluate f(x)=-3x if x=2

What is -6?

200

Evaluate f(x)=2x+1 if x=-2

What is -3?

300

Evaluate f(x)=-3 - x if x=6

What is -9?

400

Evaluate f(x)=25 + 4x if x=5

What is 45?

500

Evaluate f(x)=-(4x+2) if x=7

What is -30

Misc

100

Who won the Super Bowl?

Kansas City Chiefs

200

What Basketball player is nicknamed The Brow?

Anthony Davis

300

Who sings the song called Summer too hot

Chris Brown

400

Name the song these lyrics are from: 

I just went, bought a watch with a whole lot of diamonds to show these people  it my time.

Took a trip out to cali to hang with the crips, to make a play and get high off that zaza

Mhmmm BigXthaPlug

500

Who won the All star Dunk contest and 3 point shootout

Dame Dolla and MAc MCclung

Compare/ Construct Functions

100

Mike deposits $ 145 in his savings account. Each week after he deposits $15. Write the equation in slope intercept form to find the amount of money in mike's account at any given week.

y=145+15x

200

Suppose you want to decide on a movie streaming service you should join. Company A Charges 1.50 per movie with a start up fee of $5. The cost to stream movies for company B 3.50 per movie. 

How much more will  Company B cost then company A if 15 movies are rented in one month?

$25

300

A ski instructor charges an initial plus $30 per hour for lessons. Tasha paid $ 205 for six hours of lessons

What's the rate of change

$30

400

Write a linear equation in the form pf y=mx+b using these points: (3,110) (4,130) (5,150) (6,170)

y=20x+50

500

A gym membership cost $35 for the first month, 50$ the 2nd month, and $65 for the 3rd month. Write a linear equation in y=mx+b using this information.

y=15x+20

Is it a Function?

100

Is it a function? {(2, 3), (4, 5), ( -2, 6)}

What is YES because x does not repeat?

200

Using the vertical line test does the graph of the points (1,3) and (1,5) represent a function?

What is False, the points fail the vertical line test

300

Is it a function?

x	y
2	4
1	5
2	6

What is NO because x repeats?

400

Is it a function?

What is YES because it passes the Vertical Line Test?

500

Is it a function? (-2,0) (4,0) (5,-2) (-1,-1) (-3,-1)

yes