Question

the parking charges of a car in a parking lot is rs 40 for the first three hours and rs 20 for subsequent hour . taking total parking time to x hours and total charges as rs y.
1.linear equation in two variables to express the above statement.
2. draw a graph for linear equation and record the charges for four hours.

Answer 1

parking charges for first 2 hours=₹30

parking charges for subsequent hours=₹10

Total park time= x hours

Total charges= ₹ y

.•. y =30+10(x-2)

y=30+10x-20

10x-y=-10

from the graph it is clear that for 5 hours, parking charges=₹60

thank you

hope it was really help full for you

graph is not made by any measurement so careful.