The standard form or the equation of a parabola is y = 7x^2 + 14 +4. What is the vertex form of the equation?
Vertex form y = a (x-h)^2 + k
y = 7x^2 + 14x + 4 = 7 (x^2 + 2x) + 4 'complete the square'
= 7 (x+1)^2 -7 + 4
= 7 (x+1)^2 -3