Ex 13.2, 1 (c) - Chapter 13 Class 8 Introduction to Graphs

Transcript

Ex 13.2, 1(c) Draw the graph for the following tables of values, with suitable scaled on the axes. (c) Interest on deposits for a year. Ex 13.2, 1(c) Draw the graph for the following tables of values, with suitable scaled on the axes. (c) Interest on deposits for a year. (i) Does the graph pass through the origin? (ii) Use the graph to find the interest on Rs. 2500 for a year. (iii) To get an interest of Rs.280 per year, how much money should be deposited? (c) (i) Yes, from the graph, we can see that the graph passes through origin. (ii) 2500 is the point, we draw a line parallel to y-axis. From that point, we draw line parallel to y-axis. Ex 13.2, 1 (c) (i) Does the graph pass through the origin? Yes, the graph passes through origin Ex 13.2, 1 (c) (ii) Use the graph to find the interest on Rs. 2500 for a year. Yes, the graph passes through origin So, Interest on Rs. 2500 for a year is Rs 200 Ex 13.2, 1 (c) (iii) To get an interest of Rs.280 per year, how much money should be deposited? So, to get interest of Rs.280 per year, we should deposit Rs 3500