Asked by 0livia

Sorry! I posted only the beginning of this question before. Here's the whole thing.

Write an equation to express y in terms of x.

X 1 __(blank) 3 4 5
Y 7 12 17 22 __(blank)

y = ________(blank)

I don't understand this one. Can someone please help????
Answered by Steve
when x goes from 3 to 4, y goes from 17 to 22
This indicates a slope of 5.
This means that we will have something like y=5x

If you look carefully, you can see that all the y values differ by 5, and the x values differ by 1.
So, since y(1)=7, y=5x+2

The rest of the values are easy to fill in now.
Answered by 0livia
I get it now! Thanks so much, Steve!
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