Question

Graph the relation shown in the table. Is the relation a function? Why or why not?

x y
-1 - 3
-1 - 2
0 - -4
4 - 2

No; a vertical line passes through two graphed points.

Yes; no horizontal line passes through two graphed points.

Yes; no vertical line passes through two graphed points.

No; a horizontal line passes through two graphed points.

Answer 1

The chosen topic is not meant for use with this type of problem. Try the examples below.

x + 6 y = 5

6 x + 2 y = 8

x − y + 4 = 8

Use the given functions to set up and simplify

2 .

x y =

− 1 =

3 =

− 1 =

2 =

0 − 4 = − 4

4 = − 4

2 = − 4

Explanation:

Find the equation with a point and y-intercept.

y = ( y/ x − y ) x + x y

The chosen topic is not meant for use with this type of problem. Try the examples below.

( 0 , 9 ) , ( 8 , 6 )

( 0 , 9 ) , ( 5 , 4 ) , ( 1 , 4 )

( 1 , 2 ) , ( 3 , 4 )