Question

Why is it

sufficient to graph this function in the
upper right quadrant only? How far can
Rick drive on 2.5 gallons of gasoline?

Answer 1

a) see attachment

b) negative values for miles or gallons are not possible

c) 45 miles

Explanation:

a)

See the attachment for a graph

__

b)

Graphing in the first quadrant is all that is necessary, because the number of gallons and the number of miles cannot be negative.

__

c)

Use 2.5 for g and evaluate:

d = 18(2.5) = 45

Rick can drive 45 miles on 2.5 gallons of gas.