Thursday 1.21

Function

Not a Function

Function

Not a Function

function, an input has 1 output

function, an input has 2 different outputs

function, no output has 2 different inputs

not a function, an input has 2 different outputs

(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)

(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)

Yes; it passes the horizontal line test.

No; it is not a straight line.

Yes; it passes the vertical line test.

No; there is a line connecting the dots.

Yes; it passes the horizontal line test.

No; it is not a straight line.

Yes; it passes the vertical line test.

No; there is a line connecting the dots.

FUNCTION

NOT FUNCTION

FUNCTION

NOT FUNCTION

FUNCTION

NOT FUNCTION

FUNCTION

NOT FUNCTION

It is a function because each x has only one y.

It's not a function because an x has multiple y's.

It's not a function because a y has multiple x's.

It is a function because each y has only one x.

It is a function because each x has only one y.

It's not a function because an x has multiple y's.

It's not a function because a y has multiple x's.

It is a function because each y has only one x.

It is a function because no vertical lines hit it twice.

It's not a function because a vertical line hits it twice.

It's not a function because no vertical lines hit it twice.

It is a function because a vertical line hits it twice.

It is a function because no vertical lines hit it twice.

It's not a function because a vertical line hits it twice.

It's not a function because no vertical lines hit it twice.

It is a function because a vertical line hits it twice.

It is a function because no vertical lines hit it twice.

It's not a function because a vertical line hits it twice.

It's not a function because no vertical lines hit it twice.

It is a function because a vertical line hits it twice.

It is a function because no vertical lines hit it twice.

It's not a function because a vertical line hits it twice.

It's not a function because no vertical lines hit it twice.

It is a function because a vertical line hits it twice.