Functions

Slope

Domain and Range

Function

Linear

Miscellaneous

100

y=1/3x+2

1/3

100

Domain?

(2, 4) (-6, 3) (0, -5) (-3, 5)

{-6, -3, 2, 0}

100

How do you tell if a table is a function?

Cheating X's

100

If a line is linear it is ___________.

Straight

100

What does m stand for?

slope

200

Graph

1/2

200

Range?

(2, 4) (-6, 3) (0, -5) (-3, 5)

{-5, 3, 4, 5}

200

How do you tell if a graph is a function?

Vertical Line Test

200

y=3x+2

Linear

200

what does b stand for?

y-intercept

300

(2,0) (3, 4)

4/1 or 4

300

What is the domain and range of the table?

x y

1 3

2 6

3 9

Domain={1, 2, 3}

Range={3, 6, 9}

300

Is the table a function?

x y

1 2

2 4

3 6

Yes

300

y=3/x -8

nonlinear

300

Two other names for X and two other names for Y.

x --> Domain or input

Y--> Range or output

400

What is the slope of the table?

x y

-1 0

0 3

1 6

3/1 or 3

400

Domain?

(2, 4) (-6, 3) (2, -5) (-3, 5)

{-6, -3, 2}

400

Is the graph a function?

Yes

400

y=3x²- 4

nonlinear

400

Disney World has let 400 people into the park so far. They can let in 30 people every 150 seconds. Write a linear equation for this situation.

y=30/150x+400 or

y = 1/3x+400

500

(-5, -7)(-4, -2)

500

Range?

(2, 4) (-6, 4) (2, -3) (-3, 3)

{-3, 3, 4}

500

To be a function, every ___________ gives back exactly one __________.

input; output

500

What two things make an equation nonlinear?

dividing by a variable

exponents

500

Complete the table if y=4x-3

-1

-7

-3