Water flows from a faucet at a constant rate. Assume that 6 gallons of water are already in a tub by the time we notice the fauc
et is on. This information is recorded in the first column of the table below. The other columns show how many gallons of water are in a tub at different numbers of minutes since we noticed the running faucet. 
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Answer:
Part A) 25
Part B) 225
Step-by-step explanation:
Part A
The slope of the graph gives us the mile per gallon of the car.
Recall that the slope of the graph is rise over run.
Therefore car gets 25 miles per gallon
Part B) Since we know the slope of the direct variation line, we substitute into y=kx to get:
To find the number of miles the car travels using 9 gallons, we substitute x=9 to get:
This gives us 225 miles