The table shows the dimensions of
four rectangles. How many
centimeters longer is the rectangle
with the greatest area than the
rectangle with the least area?
Rectangle
Width (cm)
Length (cm)
5.8
7.2

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.