Best Answer:<span> </span><span>I'll make one up and explain how to do it.
Lets say your two points are (2,6) and (-4,7)
To start with you need to use the point-slope formula which is y2-y1/x2-x1
Remember (x,y), Thus we have
7-6/-4-2 = 1/-6; So out slope is -1/6
Now lets use the following equation y = mx+b to solve for b which is the y-intercept. By substitution of either order pair we can solve for b
6 = 2(-1/6)+b; distribute the 2 6 = -2/6+b; add 2/6 to each side to isolate b 6+2/6 = b; put 6 over 1 6/1+2/6 = b; get a common denominator between 6/1 and 2/6 which is 6 6(6/1)+2/6 = b ; distribute 36/6+2/6 = b; add these up 38/6 = b; reduce to lowest terms by dividing by 2 to each 19/3 = b
