The derivative of a function may be used to determine whether the function is increasing or decreasing on any intervals in its domain. If f′(x) > 0 at each point in an interval I, then the function is said to be increasing on I. f′(x) < 0 at each point in an interval I, then the function is said to be decreasing on I.
This is one that most people can figure out.
Answer:
my bad yall, I seen the comments!! it's 12
Step-by-step explanation:
I'm so sorry!!
Hey there!
"A number" is referred to an unknown number so we can say it is labled as

"Increased" means you're going up/ adding
ten = 10
150 stays the same
"Ten times a number" =

"Increased by 150" =

Thus your answer should look like this:

Good luck on your assignment and enjoy your day!
~

Answer:
-2x^2+2x+7
Step-by-step explanation: