linear equations in two variables

In this video, linear Equations, variables, constants are explained in detail with example and demonstration by plotting solutions on graph. This video is intended for class 9 and class 10 students. 

Question 1: Give the geometric representations of y = 3 as an equation (i)  in one variable (ii)  in two variables Question 2 the geometric representations of 2x + 9 = 0 as an equation (i)  in one variable (ii)…

Question 8: In countries like USA and Canada, temperature is measured in Fahrenheit, whereas in countries like India, it is measured in Celsius. Here is a linear equation that converts Fahrenheit to Celsius: (i) Draw the graph of the linear…

Question 7: Yamini and Fatima, two students of Class IX of a school, together contributed Rs 100 towards the Prime Minister’s Relief Fund to help the earthquake victims. Write a linear equation which satisfies this data. (You may take their…

Question 6: If the work done by a body on application of a constant force is directly proportional to the distance travelled by the body, express this in the form of an equation in two variables and draw the graph…

Question 5: From the choices given below, choose the equation whose graphs are given in Fig. 4.6 and Fig. 4.7. For Fig. 4. 6 (i)y=x (ii) x+y=0 (iii) y = 2x (iv) 2+3y=7x For Fig. 4.7 (i) y=x+2 (ii) y=x–2…

Question 4: The taxi fare in a city is as follows: For the first kilometre, the fare is Rs 8 and for the subsequent distance it is Rs 5 per km. Taking the distance covered as x km and total…

Question 3: If the point (3, 4) lies on the graph of the equation 3y = ax + 7, find the value of a. Question 2 Question 4

Question 2: Give the equations of two lines passing through (2, 14). How many more such lines are there, and why? Question 1 Question 3