DAY 6 -find an equation of a line with two points-

-find an equation of a line with two points-
basically stating, find a y=mx+b equation with 2 points
refer to entry 2, but in a real life setting

Here I have a price per amount in a bag full of paintballs.
I have 2 points that are (100,$4.00)
and I have ( 400,$14)
so i take the 400 and 14 and I simplify 400,14 so it equals 200 and 7
I divide the 200/7
and that equals+28.5


After its in the form
y=28.6x+b
I take the number 100 and $4


I add the Y to the Y=
and i add the X to the X

$4=28.5(100)=b

after i do the equation is should be
4=2850+b

Then i subtract the 4-2850 and that gives me -2846

so stating, they charge 28.46$ without purchasing any paint and just for advirtisement.