A music school charges a registration fee in addition to a fee per lesson. Music lessons last 0.5 hour. The equation y = 40x + 30 represents the total cost y of x lessons. Find and interpret the slope and y-intercept of the line that represents this situation. Then find four points on the line.
To find Y intercept, you substitute X for 0 So it becomes, y=40(0)+30 Solve it, y=0+30 y=30 If Y=30 x=0 Y intercept is (0,30) x y To find four points, you use the slope.
