Question

What’s the vertex of Y=4x2+8x

Answer 1

The vertex is at (-1, -4).

Explanation:

Y=4x2+8x Covert to vertex form:

y = 4(x^2 + 2x)

y = 4[(x + 1)^2 - 1)

= 4(x + 1)^2 - 4

The vertex is at (-1, -4).