You want to use the slopeintercept equation for a line. This form is Y =M X + B, or, Yvalue = Slope * Xvalue + YIntercept.
What we know is an X value, a Y value and a Slope.
X = 8, Y = 2, M = 3/4
By substitution we can solve for B
2 = 3/4 * 8 + B
or
B = 4
Thus equation for the line would be: Y = (3/4) * X  4
The check (should get 2 for Y if plug in 8 for X):
Y = 3/4 * (8) 4 = 6  4 = 2
8/29/2013

Chris I.