Solve the following pairs of linear equations by graphical method and also find the coordinates of these points where the lines represented by these intersect the y – axis.
3x + 2y = 12; 5x – 2y = 4

Question

Philoid · Accepted Answer

To plot the given pair of linear equations, we substitute x = 0 or y = 0

in the given linear equations to get x and y. To find more points on the

lines, take different values of x related to it and we get different values

for y from the equation.

We get the following tables for the given linear equations.

For 3x + 2y = 12

2y = 12 – 3x

For 5x – 2y = 4

2y = 5x – 4

The coordinates of the points where the lines intersect the y – axis are: (0,6) and (0, – 2).

Solve the following pairs of linear equations by graphical method and also find the coordinates of these points where the lines represented by these intersect the y – axis.3x + 2y = 12; 5x – 2y = 4