The equation of a line that passes through the point (x1,y1) and has a slope of m is
y-y1=m(x-x1)
given
(3,1) and m=3
y-1=3(x-3)
y-1=3x-9
y=3x-8
There is a Math website that has a lot of Calculus story problems. He shows you how to solve problems.
patrickjmt.com
also on Youtube;
Patrickjmt channel. The Yourmathgal channel is also good,
both have over 800
videos. Have gone to
both since 2011.
You can buy 2 green shirts for 23 dollars, so you have 7.1 dollars left! Or $7.10 left.
The answer is A. The parking fee depends on the amount of time a person is parked
The answer is B.
hope i helped
