Question

a line through points (-5,2) and (2,y) has slope of 3. what is y?

Answer 1

and howd you do?

Answer 2

slope = m = (y2-y1) / (x2-x1). You have 4 of the 5 pieces of info you need. Put those in and solve for the y.

Answer 3

by if 2 is x2 and y is y2 then how do i write that out? it doesnt work...

Answer 4

It will work because you also plug in x1 and y1 and m

Answer 5

so it'd look lke (y-2)/(2-(-5))?

Answer 6

yes, and set = to the m. Then solve for y and you're done.

Answer 7

okay so I got y=23... any way you could possibly check that?

Answer 8

You got it! Good job!

Answer 9

THANK YOUUUU SO MUCH! now would you do the same thing to solve for x?

Answer 10

Similar, yes. As long as you're given enough info, which would probably be both y's, one x, and the m.

Answer 11

you are huge life saver thank you so much.

Answer 12

You're welcome and good luck with your studies.