Question

Choose the graph of 3x + y = –2.

Answer 1

Option (d) is correct.

Explanation:

Given : Equation of line 3x + y = -2

We have to choose the correct graph for the given equation of line 3x + y = -2

Consider the given equation of line 3x + y = -2

We find the points that satisfies the equation of line and plot these to find the equation of line.

Put y = 1

We get

3x + 1 = -2

3x = -2 -1 = -3

x = -1

also, put y = 4

We get

3x + 4 = -2

3x = -2 -4 = - 6

x = - 2

also, when x = 0 , we get, y = -2

We get three points (-1, 1), (0,-2) and (-2, 4)

Now plot these point to obtain graph as shown below.