You are draining your fish aquarium that is full of water at the start. after two minutes, there are 6 gallons of water in the aquarium. after 5 minutes, the aquarium is empty.
a) write an equation that represents the volume y (in gallons) of water in the aquarium after x minutes.
b) interpret the slope.
and show your work!

So after 2 minutes, 6 left and
5 minutes=0 left
so if x=2 then y6
if x=5 then y=0
x is obviously negative
y=-sometingx
find slope
(y1-y2)/(x1-x2)
(6-0)/(2-5)=6/-3=-2

so y=-3x+b
solve for b
if y=0 then x=5
0=-3(5)+b
0=-15+b
add 15 to both sides
15=b

the equation is y=-3x+15
y=mx+b
m=slope

A. equation is y=-3x+15

B. slope=-3

100000000

Step-by-step explanation:

6 times 10 to the 8th is 600,000,000

5 times 10 to the 7th is 500,000,000

600,000,000-500,000,000=100,000,000