Which equation does not represent a function? a) y = 2x + 3 b) x = 4y + 7 c) 6x - 5y = 8 d) y2 = -5x - 8

Can you simplify 4/7? 24 points will be awarded!

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.