Find the midpoint of A (1, -4) and B (93)

-40.5 I took the test

-40.5 I took a test about it

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.