Answer:
(a) (–4, –2) U (2, 4)
Step-by-step explanation:
A graph is concave down where its second derivative is negative. That will be where the slope of the first derivative is negative.
Your graph shows the first derivative has negative slope at the left and right ends. The function f(x) will be concave downward on those intervals:
(–4, –2) U (2, 4)
The answer is D. If you divide -5 by -12 you will get the same answer
Answer:
6/8
Step-by-step explanation:
Answer:
Translate. .
Solve—divide both sides by 12. .
Simplify. .
Write in interval notation. .
Graph on the number line. .
Step-by-step explanation:
Translate and solve. Then write the solution in interval notation and graph on the number line.
Thirty less than x is at least 45.
Solution
Translate. .
Solve—add 30 to both sides. .
Simplify. .
Write in interval notation. .
Graph on the number line. .