Find P(0), P(1), P(-2) for the following polynomials. a) P(x) = 10x – 4x2 -3 b) P(y) = (y+2)(y-2)

at 0 hours the plane has 422,000 gallons of gas.

after 2 hours it has 369,250 gallons.

subtract to find the difference and then divide by 2 hours:

422000 – 369250 = 52750 /2 = 26,375 gallons per hour.

can also do the full 16 hours:

the plance used 422,000 gallons in 16 hours:

422,000 / 16 = 26,375 gallons per hour.