Maths-
General
Easy

Question

# Sravs and her parents are going to an art museum for the day. The Parking garage near the museum charges the rates shown here below:a) Is the cost to park a function of time ? Explain .b) If they stay at the museum for 6 hours , Should they expect to pay more than \$25.

Hint:

## The correct answer is: \$25.

### We have given the two data of Time and Cost.We will convert the given data into pointsAs (1,5), (2,10) , (3,15) , (4,20) , (5,25)Domain:-  { 1, 2, 3, 4, 5 }Co- Domain:- { 5, 10, 15, 20, 25 }From the given data we can analyse that the every member in the domain set has unique image in the co-domain set .It is an identity function.We can represent the given function asy = 5 xwhere x is time and y is costa) Yes, because as the time increases the cost increases 5 times the cost.b) If they stay at museum for 6 hours then x = 6y = 5 x = 5 (6)= 30Which is greater than \$25So they have to pay more than \$25.

All functions are relations but all relations are not functions.