## SephI 2 years ago How would I graph the equation y = 4x - 7 I would go to the left seven spaces and up 4, ja?

1. findme

from y=x, you stretch the graph by 4, which gets you y=4x, so the graph is thinner, then move the graph y=4x down by 7 to get the desired equation

2. skullpatrol

I would start at the y-intercept (0, -7), because the form of the equation is y=mx + b, where b is the y-intercept.

3. skullpatrol

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4. skullpatrol

Now go up 4 units and to the right 1 unit because m = 4/1

5. SephI

Hmm. I see. So how would I solve the 4x - y = 7 I need to solve for y? Wouldn't I divide 4x by itself?

6. skullpatrol

When you asked to solve FOR y, it means solve with reference to y; that is, get y all alone on one side of the equation.

7. SephI

Yup, so in the equation I need to get 4x off of the right side. How would I do that? Btw, this is part 2 of the question.

8. skullpatrol

You don't "need to get 4x off of the right side" just get y alone on either side will do.

9. SephI

U huh... but I want to get it off the right side...

10. skullpatrol

Both x and y are on the LEFT-side 4x - y = 7

11. skullpatrol

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12. SephI

Ok thanks

13. skullpatrol

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14. skullpatrol

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