Question

Is the function increasing or decreasing over the interval (-3,-1)? Explain.

Answer 1

Increasing it is going up

Answer 2

Answer: Decreasing

Explanation:

The curve is going downhill as you move from left to right, and as you move from x = -3 to x = -1.

The interval notation of (-3,-1) means -3 < x < -1.

Since the curve is going downhill on this region, this means the function is decreasing on this interval.