If there are 4 pens there will be 1 pencil, if there is 1 pencil there will be 4 pens If the ratio is factored to a number, let's say 3, then there will be 12 pens for every 3 pencils
in this exercise you must substitute the value of of x = 12 in the equation of the parable given, if the result is 10 then the ball pass through the hoop
Y = (-.125)(12)^2+ (1.84)(12)+6 = -18+22.08+6 = 10.06≅10 , of this form it is demonstrated, that the ball pass through the hoop
