Pre-Algebra Functions

Function

Not a Function

(9,5) (10,5) (9,-5) (10,-5)

(3,4) (4,-3) (7,4) (3, 8)

(6,-5) (7, -3) (8, -1) (9, 1)

(2, -2) (5, 9) (5, -7) (1, 4)

Function 

Not a Function 

D: {1, -3, -4,}
R: {0, 1, 2, -4}

D:{0, 1, 2, -4}
R:{1, -3, -4}

D:{0, 1, 2, 3, 4}
R:{1, -3, -4}

(3, 7)

(4, 1) 

(1, 9)

(2, 6)

Graph 1

Graph 2

Graph 3

Graph 4

non-vertical linear graph.

set of ordered pairs where an x term repeats.

set of ordered pairs where a y term repeats.

U-shaped graph.

Relation

Linear

Exponential

Function

Yes its a function because there are not variables for missing numbers

No it's not a function because the y value 4 repeated

No it isn't a function because the x value 2 is repeated

No it's not a function because the x value 5 has y values of  10 & 12

-5/3

-3/5

5/3

3/5