Question

Directions: Without graphing, tell whether each point is on the graph of the given line.
Problem: -4x+2y=8; (1, 6)

Answer 1

Substitute the x-value given into the equation. Then, rearrange and solve for y. If you get the corresponding y-value, the point is therefor on the line.

Answer 2

so i +4x

Answer 3

to both sides

Answer 4

-4(1)+2y=8. Solve that for y.

Answer 5

Add 4 to both sides and divide by 2.

Answer 6

oh then i would get 2y=8+4x

Answer 7

Yes. Now put in your x-value and see if the y-value given is produced.

Answer 8

how do i do that?

Answer 9

odnt i still have to get the y by itself

Answer 10

dont*

Answer 11

Well, you have 2y=8+4x. You're given the point (1,6). So, put in the x and y-values to see if they work: 2(6)=8+4(1). And it sure does!

Answer 12

thank you! you helped me so much! xD

Answer 13

No problem! :)