Question

1. Show that x = 1, y = 3 satisfy the linear equation 3x – 4y + 9 = 0. 2. Look at the following graphical representation of an equation. Which of the points (0, 0) (0, 4) or (– 1, 4) is a solution of the equation? 3. Look at the following graphical representation of an equation. Which of the following is not its solution? (a) (6, 0) (b) (4, 0) (c) (2, 3) 4. Is (3, 2) a solution of x + y = 6?

Answer 1

Answer:

option B is the correct answer..

Step-by-step explanation:

don't report it for some point..

Answer 2

Answer:

Step-by-step explanation:

Solution:

2x + 5y = 12

We have,

x + y = 3

When y = 0 we have x = 3

When x = 0 we have y = 3

Thus we have the following table giving points on the line x + y = 3

X 0 3

Y 3 0

Now, 2 + 5y = 12

When x = 1, we have

Thus we have the following table giving points on the line 2x + 5y = 12

X 1 -4

Y 2 4

Graph of the equation x + y = 3 and 2x + 5y = 12 is

Graph of the equation

Clearly two lines intersect at a point P (1, 2)

Hence x = 1 and y = 2