Find the equation of the line in slope intercept form that passes through the coordinates (-1,2) and (7,6).

Question

anonymous · Answer

What do I do?

geometry_hater · Answer

Slope intercept.......Y= Mx + B

So we dont have a y intercept or a Slope so we need to find both of them

First finding the slope....Simply do the formula Y2 - Y1 over X2-X1 and there's your slope.

anonymous · Answer

okay.

anonymous · Answer

first try to draw it on a graph to visualize it...

anonymous · Answer

I got 1/2...
FOR THE UM...slope

anonymous · Answer

the slope is positive so 1/2 you are right...

anonymous · Answer

But then what do I do next?

anonymous · Answer

now plug in it to find B...use any point ...

anonymous · Answer

you can use any of the two set points...(-1,2) or (7,6) ....

anonymous · Answer

so... 2=1/2(-1) + b?

anonymous · Answer

Got b= 5/2...

anonymous · Answer

yes...now a little bit of algebra to find B which is the Y intersection..

anonymous · Answer

x.x...

anonymous · Answer

So...substitute x w/ 0 to find y...

anonymous · Answer

not really you already got B....just put it in slope intercept form....y= m(1/2)X+b(5/2)

anonymous · Answer

So that's it?

anonymous · Answer

yup.....Y=Mx+B...we found M and B ...so put it into slope intercept form...

anonymous · Answer

okay, thanks.

anonymous · Answer

Youre welcome