Question

Truck drivers report the mileage, or the number of miles (m)

Answer 1

Answer:

Andy went as furthest as possible with a gallon of gasoline

Step-by-step explanation:

Let

m ----> the distance in miles

g ----> the number of gallons of gas

step 1

Kelley's Mileage

Find the slope of the linear function of Kelley's Mileage

we have the points

(0,0) and (20,50)

$slope=(50-0)/(20-0)\\slope=2.5\ miles/gallon$

the linear equation is

$m=2.5g$

step 2

Andy's Mileage

Find the slope of the linear function of Andy's Mileage

we have the points

(15,78.75) and (30,157.5)

$slope=(157.5-78.75)/(30-15)\\slope=5.25\ miles/gallon$

the linear equation is

$m=5.25g$

step 3

Rick's Mileage

we have

$m=4.8g$

therefore

the slope is $4.8\ miles/gallon$

step 4

Compare the slopes

$5.25\ miles/gallon > 4.8\ miles/gallon > 2.5\ miles/gallon$

therefore

Andy went as furthest as possible with a gallon of gasoline

Answer 2

Answer: the correct answer is Andy