At the beining, he has 76
that is at x=0
y=mx+76
find m
given
when x=2, y=100
find m
100=2m+76
minus 76 both sides
24=2m
divide both sides by 2
12=m
the equatin is
y=12x+76
Slope = 1/2 :)
rise over run (rise/run)
so... 2/4 = 1/2
hope this helps!
If you're solving for a, you would add 32 to both sides
2a=32
then you would divide by 2
a=16
"you can convert the percent to a fraction or decimal. While you might need to subtract a percent from a percent when working in finance, if you are working on homework you more likely will come across problems where you need to subtract a percent from a whole number."
