Which line is perpendicular to the line shown on the graph?

A

Step-by-step explanation:

First find the equation of the line

As you can see it has a y-intercept of -1   and a slope of 2/3  so the equation will be y= 2/3x -1  

And the perpendicular form of this is y= -3/2x +2

i assume that by 5 you mean 5 gallons.

(20)(0.25) = 15

removing 15 gallons reduces the tank from 20 to 5.

the answer is c.

for continuous functions, they continue in the same pattern and you have to find that pattern kinda like slope