The city’s water company charges a fee of $20 a month in addition to $0.25 per every gallon used. Using the function c=0.25x+20, where c is the total cost per month for water services and x is gallons used, which of the following points on the graph accurately represents a monthly usage of 1,200 gallons?(1 point)
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To find the total cost \( c \) for a monthly water usage of \( x = 1200 \) gallons, we can use the function:
\[ c = 0.25x + 20 \]
Substituting \( x = 1200 \):
\[ c = 0.25(1200) + 20 \] \[ c = 300 + 20 \] \[ c = 320 \]
So, for a monthly usage of 1,200 gallons, the total cost \( c \) is $320.
The point that accurately represents this monthly usage on the graph would be \( (1200, 320) \).
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