3. Write a program that prompts the user to enter the coordinates of two points (x1, y1) and (x2, y2), and displays the line equation in the slope-intercept form, i.e., y = mx + b. m and b can be computed using the following formula: m = ( y2 y1 ) /( x2 x1 ) b = y1 mx1 Dont display m if it is 1 and dont display b if it is 0.