The vertex form of the equation of a parabola is y = 4(x - 2)2 - 1. What is the standard form of the equation? A.y = 4x2 - 16x + 2 B.y = 4x2 - 16x + 15 C.y = 4x2 - 3 D.y = 16x2 - 5 ?
Ok so your original equation was y=4(x-2)²-1 Therefore we need to expand the bracket to find the original equation. To do this we need to find (x-2)²=x²-4x+4 Now we multiply this by 4 and subtract 1 4x²-16x+15 Therefore B is the answer
