Posted by joshua on Wednesday, January 5, 2011 at 8:45pm.
Write an equation in slope intercept form of the line that passes through (4, 1) and (5, -1).
Algebra - Olivia, Wednesday, January 5, 2011 at 8:47pm
Algebra - Reiny, Wednesday, January 5, 2011 at 10:54pm
Olivia found the slope
so y = -2x + b
sub in one of the given points, I will use (4,1)
1 = -2(4) + b
b = 9
y = -2x + 9
(test it with the other point, it works)