Julia W. answered • 03/29/13

Algebra I Made Better

The slope intercept form of a linear equation is

y=mx+b

y is the y coordinate of a point on the line (X,Y)

m is the slope

x is the x coordinate of a point on the line (x,)

b is the y-intercept--the point on the y-axis where this line crosses.

if y=mx+b

then with your data there is a point where the line crosses at 2 on the x-axis (2,0)

so you can write y=mx+b as 0=m(2)+3/4

0=m(2)+3/4

-3/4=m(2)

-3/4 is divided by 2

-.375=m

the equation becomes y=-.375x+.6