mathemafia

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