Review Lines an Parabolas The equation of the graph B is

In a quadratic function , f(x) = a * x^2 + b * x + c, the b-value is the middle value , The one multiplied by the x. The general graph of a quadratic is a parabola.

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x