im not understanding slope intercept equations....anyone that can help???

Question

anonymous · Answer

where are u confused?

galleara · Answer

y=mx+b
m is the slope you are given (we'll say 4) and if you are given a point say (1,2) y=2 and x=1
entered into the equation you would have this:
2=4(1)+b where you are looking for b. after multiplying 4*1, subtract it from 2 and you will get b=-2. Then your equation will look like y=4x-2. 
Does this help?

anonymous · Answer

cool..

foreverandalways13 · Answer

ok lets say they want us to solve for x....how would you do that?

foreverandalways13 · Answer

but yes it helps alot!!!
thanks!

galleara · Answer

well if you are solving for x, using the same numbers as above, we would put in y=mx+b
2=4x-2
add 2+2 --> 4=4x divde by 4 and you get 1

foreverandalways13 · Answer

oh that makes sense!!! thanks again!

galleara · Answer

you're welcome :)