Posted by **Cassie** on Wednesday, October 23, 2013 at 10:54pm.

Write a function rule for:

x 1 2 3 4 5

y 1 5 9 13 17

I do not get these please explain?

- Ms. Sue Help please? -
**Cassie**, Wednesday, October 23, 2013 at 11:04pm
Help please?

- Algebra -
**Steve**, Wednesday, October 23, 2013 at 11:51pm
note that y increases by 4 when x increases by 1.

So, expect something like y=4x.

But 4*1 = 4, not 1, so subtract 3.

y = 4x-3

Looks good to me.

- Algebra -
**Cassie**, Thursday, October 24, 2013 at 12:15pm
That is what I got. Thank you

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