Educational

Graphical Solution of a Pair of Linear Equations Video Explanation Question Solve the following system of equations graphically: \[ x – y + 1 = 0 \] \[ 3x + 2y – 12 = 0 \] Solution Step 1: Write Both Equations in a Convenient Form Equation (1): \[ x – y + 1 = […]

Graphical Solution of a Pair of Linear Equations Video Explanation Question Solve the following system of equations graphically: \[ 3x + y + 1 = 0 \] \[ 2x – 3y + 8 = 0 \] Solution Step 1: Write Both Equations in the Form \(y = mx + c\) Equation (1): \[ 3x +

Graphical Solution of a Pair of Linear Equations Video Explanation Question Solve the following system of equations graphically: \[ 2x + y – 3 = 0 \] \[ 2x – 3y – 7 = 0 \] Solution Step 1: Write Both Equations in the Form \(y = mx + c\) Equation (1): \[ 2x +

Graphical Solution of a Pair of Linear Equations Video Explanation Question Solve the following system of equations graphically: \[ x – 2y = 5 \] \[ 2x + 3y = 10 \] Solution Step 1: Write Both Equations in a Convenient Form Equation (1): \[ x – 2y = 5 \Rightarrow x = 5 +

Graphical Solution of a Pair of Linear Equations Video Explanation Question Solve the following system of equations graphically: \[ x + y = 3 \] \[ 2x + 5y = 12 \] Solution Step 1: Write Both Equations Equation (1): \[ x + y = 3 \Rightarrow y = 3 – x \] Equation (2):

Algebraic and Geometrical Representation of Cost Problem Video Explanation Question The cost of 2 kg of apples and 1 kg of grapes on a day was ₹160. After a month, the cost of 4 kg of apples and 2 kg of grapes is ₹300. Represent the situation algebraically and geometrically. Solution Step 1: Define the

Pair of Linear Equations – Nature of Lines Video Explanation Question Given the linear equation \[ 2x + 3y – 8 = 0, \] write another linear equation in two variables such that the geometrical representation of the pair so formed is: (i) intersecting lines (ii) parallel lines (iii) coincident lines Solution Given Equation \[

Nature of Pair of Linear Equations Using Ratio of Coefficients Video Explanation Question On comparing the ratios \[ \frac{a_1}{a_2}, \frac{b_1}{b_2}, \frac{c_1}{c_2}, \] find out whether the lines representing the following pairs of linear equations intersect at a point, are parallel or coincide (without drawing them): (i) \(5x – 4y + 8 = 0,\; 7x +

Graphical Representation Using Ratio of Coefficients Video Explanation Question Gloria is walking along the path joining the points \((-2, 3)\) and \((2, -2)\), while Suresh is walking along the path joining \((0, 5)\) and \((4, 0)\). Represent this situation graphically and check the nature of the paths using the ratio of coefficients. Solution Step 1:

Graphical Representation of the Paths of Two Trains Video Explanation Question The path of train A is given by the equation \[ 3x + 4y – 12 = 0 \] and the path of another train B is given by \[ 6x + 8y – 48 = 0. \] Represent this situation graphically. Solution Step