Over which interval is the graph of f (x) = 1/2x^2 + 5x + 6 increasing?

(-6.5, ∞)

(-5, ∞)

(-∞, - 5)

(-∞, - 6.5)

Question

Andrew Lang

16 April, 19:08

+2

Answers (2)

Know the Answer?

Kayley · Answer 1

We will use derivative of this function:

f' (x) = x + 5

x + 5 > 0

x > - 5

The graph is increasing for x ∈ ( - 5, ∞).

Answer: B)

Aubree Mooney · Answer 2

Aubree Mooney 16 April, 21:46

0

The correct answer ( - 5, ∞)

Over which interval is the graph of f (x) = 1/2x^2 + 5x + 6 increasing?(-6.5, ∞)(-5, ∞)(-∞, - 5)(-∞, - 6.5)