Question

Complete the table of values for the following equation.
6x + 2y = 30

x-values y-values
-1
0 15
1
2 9
3 6
4

Select the best answer from the choices provided.

x-values y-values
-1 18
0 15
1 12
2 9
3 6
4 2


x-values y-values
-1 18
0 15
1 11
2 9
3 6
4 3


x-values y-values
-1 17
0 15
1 12
2 9
3 6
4 2


x-values y-values
-1 18
0 15
1 12
2 9
3 6
4 3

Answer 1

this is just a matter of subbing in numbers..
6x + 2y = 30 .....if x = -1.....so sub in -1 for x to find y
6(-1) + 2y = 30
-6 + 2y = 30
2y = 30 + 6
2y = 36
y = 36/2
y = 18
so if x = -1, then y = 18

6x + 2y = 30 ....if x = 1
6(1) + 2y = 30
6 + 2y = 30
2y = 30 - 6
2y = 24
y = 24/2
y = 12
so if x = 1, then y = 12

I think you can get it now....just sub in the numbers given into the equation to find the other number.

Answer 2

It is the last one! D.