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Functions

Which is a function?

(1,2) (2,2) (1,4)

(5,6) (4,4,) (5,7)

(1,4) (-18,2) (18,4)

None of A, B, or C

Select ALL the functions.

(1,1) (2,1)

(2,3) (4,1)

(5,8) (5,6)

None

All

Is this a function, type "yes" or "no"? (5,-9) (2,18) (7,-5) (-4,18) (6,5)

(9,8) (8,9)

Function

Not a function

(9,8) (9,8)

Function

Not a function

(2,3) (3,2) is _______.

If these points were on a graph, how would you tell if they are a function? ^^^^^^^ Select all that apply.

Use the horizontal bar method by seeing if the line touches 2+ dots or line points.

Use the vertical bar method by seeing if the line touches 2+ dots or line points vertically.

Go right x, then go up y, from the origin.

Go up y, then go right x, from the origin.

Use the cross method by seeing if the dot or line points are touching the x line, or the y line.

Use the around origin method by seeing if the dots or line points are touching the perimeter of the grid.

Create an x and y formula. (y=mx+b)

Create an reflection of the dots and line points across y

Create an reflection of the dots and line points across x

All

None

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