For each question on a test, Nathalie receives 5 points. She also answered the extra credit questions right for an additional 6 points. If she needs to get a minimum of an 81 to keep her "B" average, what inequality models the number of problems she needs to get right?

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.