Answer:
The equation will be "[tex]y=-2.8 x+75[/tex]".
Step-by-step explanation:
The given values are:
Started with,
= 75 gallons
After 15 hrs,
Tank has,
= 33 gallons
Now,
The slope will be:
= [tex]\frac{33-75}{15}[/tex]
= [tex]\frac{-42}{15}[/tex]
= [tex]-2.8[/tex]
Thus,
The equation is "[tex]y=-2.5x+75[/tex]".