The rate at which both tanks are emptied is an illustration of a linear function
The true statement is that (b) Tank P empties at a faster rate than tank Q and had a greater starting amount than tank Q.
For tank P, we have:
Starting amount = 65 gallons
Rate = 6.5 gallons per minute
The equation of tank Q is given as: y = 63.5 - 5.2x, so, we have:
Starting amount = 63.5 gallons
Rate = 5.2 gallons per minute
From the above highlights, we conclude that:
Tank P empties at a faster rate than tank Q and had a greater starting amount than tank Q.
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