Question

Need help with these graphs really quickplease

Answer 1

Answer:

• Concave up: (0, infinity)
• Concave down: (-infinity, 0)

Answer 2

a. The graph is concave up in the interval 0 ≤ x ≤ +∞

b. The graph is concave down in the interval -∞ ≤ x ≤ 0

To answer the question, we need to know what intervals are

What are intervals?

Intervals are range of values in which a function is valid. It can either be the range of values of input or output of the function.

a. Interval where the graph is concave up

From the graph, we see that the function is concave up in the interval 0 ≤ x ≤ +∞

So, the graph is concave up in the interval 0 ≤ x ≤ +∞

b. Interval where the graph is concave down

From the graph, we see that the function is concave down in the interval -∞ ≤ x ≤ 0

So, the graph is concave down in the interval -∞ ≤ x ≤ 0

Learn more about intervals here:

brainly.com/question/26348388

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