Step-by-step explanation:
green: 6/4
red: 7/4
this is all i know
16x^2-40x+25 Yes I know my phone is messed up but at least you got the answer
On the X-Y plane, the points p and r are on the vertical line X=x. Then the perpendicular (horizontal) line through p will have the equation Y=y. Points q on that line will have coordinates
... q(<anything>, y)