Question

How do you find the range of a parabola? 2x^2+4x-16

Answer 1

find the vertex and use logic from the graph.

Answer 2

vertex is as follows
\[(\frac{ -b }{ 2a },f(\frac{ -b }{ 2a }))\]

Answer 3

What do i do with the vertex again

Answer 4

umm. since the coefficient is positive you know the graph points up from the vertex.

Answer 5

Thank you