Answer:
Step-by-step explanation:
<u>Answer:</u>
The answer is A
<u>Step-by-step explanation:</u>
The answer needs to be in slope-intercept form or y=mx+b because the amount of carpet being cleaned every minute is a constant decrease of 9 square feet.
So our b value (or how much carpet cleaned at 0 minutes) is 220
And our m value (or slope or how much carpet is being cleaned every minute) is 9
So if we plug the variables with the tangible numbers we get A(t) = -9x+220 or A(t) = 220-9x.
provided by gauth math
This is very easy. First you go to whatever space your calculator has to enter in equations, and enter into the y= ; 999999999(x-2).
The answer is B. x=-7
Explanation:
I just substituted x for all of the answer choices until I found the right one.
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