Question

a graph that starts at 0,8 and goes up vertically to 3, 20 then keeps going up diagonally at the same angle

The city’s water company charges a fee of $20 a month in addition to a $0.25 per every gallon used. Using the function c=0.25g+20
, where c is the total cost per month for water services and g is gallons used, how do you write the ordered pair to show the usage of 1,200 gallons?

(2 points)
(
,
)

Answer 1

Plug g = 1200 into c = 0.25g + 20:

c = 0.25(1200) + 20 = 300 + 20 = 320.

Ordered pair: (1200, 320)