Question

Draw the graph of 3 = 2x + y.
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Answer 1

EXPLANATION.

Graph of the equation.

⇒ 3 = 2x + y.

As we know that,

Put the value of x = 0 in equation, we get.

⇒ 3 = 2(0) + y.

⇒ 3 = y.

Their Co-ordinates = (0,3).

Put the value of y = 0 in equation, we get.

⇒ 3 = 2x + (0).

⇒ 3 = 2x.

⇒ x = 3/2.

⇒ x = 1.5.

Their Co-ordinates = (1.5,0).

Answer 2

Given solution

2x + y = 3

=> y = 3 - 2x

So let us get all the values,

If x = 1, y = ?

=> y = 3 - 2 ( 1 )

=> y = 3 - 2 = 1

Hence first Coordinate is ( 1,1 )

If x = 2, y = ?

=> y = 3 - 2 ( 2 )

=> y = 3 - 4

=> y = -1

Hence second coordinate is ( 2,-1 )

If x = 0, y = ?

=> y = 3 - 2 ( 0 )

=> y = 3 - 0

=> y = 3

Hence third coordinate is ( 0,3 )

Hence plotting these points on graph and joining them by a single straight line, we get

$answer \: is \: (0,3)$