Using pythagorean theorem:
Answer:
The equation of the line is 
Step-by-step explanation:
Looks like you've already found the y-intercept and slope of this graph. Great! That's all the info we need to create an equation.
The equation of a line is always in
form, where k is the constant of proportionality (aka the slope) and b is the constant added (aka the y-intercept).
We know the slope is 3 and the y-intercept is 3, so we can put these values into the equation.

Hope this helped!
200% bc it went up 2x as much as it cost before
Answer:
40(x-10)
Step-by-step explanation:
15 percent of 760 is 114
760 - 114 = 646
Hope this helps :D