Which situation could be represented by the function y(x) = 25 – x^2? John has 25 gallons of paint. Each day he uses 2% of the paint.
A feather, 25 feet in the air, drops 1 foot per second.
A population begins at 25 and increases exponentially over time.
A 5 inch by 5 inch piece of metal has a x inch by x inch square removed from it.