linear equations

Question 2: Express the following linear equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case: (i) 2x+3y= 9.353535… (ii) x– 5y –10=0 (iii) –2x+3y=6 (iv) x=3y…

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Question 1: The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement. Class 9 – Home Question 2

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Example 9: Solve the equation 2x + 1 = x – 3, and represent the solution(s) on (i) the number line, (ii) the Cartesian plane. Example 8 Class 9 – Home

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Example 8: For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below: (a) For Fig. 4.5 (i), (i) x+y=0 (ii) y=2x (iii) y=x (iv) y=2x+1 (b) For Fig. 4.5…

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Example 7: You know that the force applied on a body is directly proportional to the acceleration produced in the body. Write an equation to express this situation and plot the graph of the equation. Example 6 Example 8

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Example 6: Draw the graph of x + y = 7. Example 5 Example 7

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Example 5: Given the point (1, 2), find the equation of a line on which it lies. How many such equations are there? Example 3 & 4 Example 6

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Example 3: Find four different solutions of the equation x + 2y = 6. Example 4: Find two solutions for each of the following equations: (i) 4x+3y=12 (ii) 2x+5y=0 (iii) 3y+4=0 Example 1 & 2 Example 5

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Example 1: Write each of the following equations in the form ax + by + c = 0 and indicate the values of a, b and c in each case:(i) 2x + 3y = 4.37 (ii) x – 4 =…

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