trig
posted by Emma on .
which of the following sets gives the x coordinates where the parabola y=x^2+4X50 and the line y=7x10 intersect when drawn in the coordinate plane

7x10 = x^2 + 4 x  50
x^2 3x 40 = 0
(x8)(x+5) = 0
x = 8 or x = 5
(5,45)
(8,46)