Carpet costs $1.50 per square foot. You need to buy carpet for a room that 12.5 feet and 10 feet long. How much will you spend o
1 answer:
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Answer:
$68.44 for each additional belt
Step-by-step explanation:
The cost and revenue functions are:
The profit function, P(x), is given by subtracting the cost function from the revenue function.
The derivate of the profit function gives us the rate at which profit changes:
For x = 484, the rate of change is:
Profit is increasing by $68.44 for each additional belt
Using the concept of y-intercept, it is found that the response that is not correct is given by:
B) Replace x with -x.
<h3>What is the y-intercept of a function?</h3>It is the value of the function when x = 0, hence it is the point (0, f(0)).
In this problem, the function is:
The y-intercept is given by:
If we just replace x with -x, we still have the same expression as above, hence the y-intercept does not change and option B is the answer to this question.
More can be learned about y-intercepts at brainly.com/question/24737967