The total cost c a painter charges to paint a house depends on the number h of hours it takes to paint the house. This situation can be represented by the function rule c = 15h + 245. What is the total cost if the painter works for 30.25 hours?
(1 point)
$245.00 $453.75 $572.75 $698.75
To find the total cost, we can substitute the value of 30.25 for h in the function rule c = 15h + 245.
c = 15(30.25) + 245
c = 453.75 + 245
c = 698.75
Therefore, the total cost is $698.75.
A movie store sells DVDs for $11 each. What is the cost C of n DVDs? Identify the situation as discrete or continuous.
(1 point)
C = 11n; continuous
C = 11 + n; discrete
C = 11 + n; continuous C = 11n; discrete
The cost C of n DVDs can be represented by the function rule C = 11n.
Since the cost can be calculated for any number of DVDs, whether it is a whole number or a fraction, the situation is continuous.
Therefore, the answer is C = 11n; continuous.