Question

What function would reveal the minimum of f(x) = 2x^2 + 8x + 6

Answer 1

Answer: derive function f(x) and you get f'(x) = 4x+ 8

Step-by-step explanation: Derivation gives a function which tells

Is original function increasing or decreasing.

When f'(x) = 0, it means that original function of second degree

Changes its direction. Now you solve 4x+8 = 0 and x=-2.

That's the minimum point in his case.

Answer 2

The minimum or the vertex is -2

by using the rule -b/2a

-8/4=-2