Question 1: Give the geometric representation of y = 3 as an equation (i)in one variable (ii)in two variables Solution 1: (i)Given, y = 3 is the equation The representation of the solution on the number when y = 3 is treated as a…

Question 1: Draw the graph of each of the following linear equations in two variables: (i)x + y = 4 (ii)x – y = 2 (iii)y = 3x (iv) 3 = 2x + y Solution 1: (i)x + y = 4 Given : Linear Equation x + y = 4 ⇒ y = 4 – x ----------------…

Question 1:  Which one of the following options is true, and why? y = 3x + 5 has  (i) A unique solution,  (ii) only two solutions,  (iii) infinitely many solutions Solution 1:  Given: y = 3 x + 5 is a linear Equation. For x = 0, …

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. (Take the cost of a notebook to be Rs. x and that of a pen to be Rs. y.) Solution 1: Let the cos…