Which statement correctly describes the relationship represented by the graph? A.
The relationship is linear and proportional.

B.
The relationship is linear and non-proportional.

C.
The relationship is non-linear and proportional.

D.
The relationship is non-linear and non-proportional.

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.