Question

The cost of a repair which depends on the hoursof labor it takes to make the repair is $200 which of the following best shows this in function notation?

A cost(hours)=$200
B cost($200)=hours
C Hours($200)=cost
D Hours(cost)=$200

Answer 1

D. Hours(cost)=$200 because think about the hours and how long it will take to get it done

Answer 2

A cost(hours)=$200

Explanation:

Let h represents the number of hours after which the cost of a repair is $ 200,

Since, according to the question,

Cost ∝ h

We can write the cost of a repair after h hours is Cost(h)

⇒ Cost(h) = $ 200

⇒ Cost (hours) = $ 200

Which is the required function notation for the given situation.

Option 'A' is correct.