SAT Math Problem (30)

Question

y = x²-2x+1

y = -2x + 13/4

 

If the point (x,y) is a solution to the system of equations above in which x>0, what is the value of y?

Answer 1

x² - 2x + 1 = -2x + 13/4

x² - 9/4 = 0

x = ± 3/2

y = ±3 + 13/4