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A graph shows the perimeter of a square (y) against the length of its side (x), both in cm. Which point lies on this graph?
Which of these relations will not give a straight-line (linear) graph?
The graph shows the simple interest earned in one year on different deposits in a bank in Pune. Use the graph to find the interest (in ₹) on a deposit of ₹700.
A car moves at a uniform speed of 50 km/h on a highway near Nagpur. If its distance–time graph is drawn, how far (in km) will the graph show the car has gone after 2 hours 30 minutes?
Kavya deposits money in a bank at 8% simple interest per year. Make a table of the interest for one year on deposits of ₹100, ₹200, ₹300, ₹400 and ₹500, and draw its graph. Is the graph a straight line? From it, find the deposit (in ₹) that earns ₹28 interest in a year.
(HOTS) An auto-rickshaw in Jaipur charges a fixed ₹30 plus ₹15 per km. (a) Make a table of fare for 0, 2, 4 and 6 km and say whether the graph is a straight line. (b) Find the fare for 6 km. (c) How many km can be travelled for ₹165? (d) Does the graph pass through the origin? Why?
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