must a function that is decreasing over a given interval always be negative over that same interval? explain.
must a function that is decreasing over a given interval always be negative over that same interval? explain.
Answer
Answer:
No
Brief Explanation:
A decreasing function means its values are getting smaller as the input increases. But it can have positive values while decreasing. For example, the function $y = 5 - x$ on the interval $[0, 2]$ is decreasing, yet its values are positive ($y(0)=5$, $y(2) = 3$).