Question

Sam's Lawn Service uses the equation, y = 15x + 25 to calculate the cost, y, to work on a

customer's lawn for x number of hours.
Ron's Lawn Service uses the table below to calculate the cost to work on a customer's
lawn.

Answer 1

Y=15x+25
Find the x intercept zero
X=-5/3
X=-1 2/3
X=1.6

Answer 2

Rons costs less by 4 dollars

Explanation:

Sams

y = 15x+25

x=3

y = 15*3+25

= 45+25

=70

Rons

Using averaging

for 3 hours Add 2 and 4 hours and divide by 2

(49+ 83) / 2 = 132/2= 66

Rons costs less by

70-66 =4