Question

For drawing the graph of 3x - 2y = -1 , if y= 2 what is the value of x ? *

Answer 1

The value of x is 1 when y = 2.

Given:

The equation of a line 3x - 2y = -1.

To Find:

The value of x if y = 2.

Solution:

We have been given the equation 3x - 2y = -1.

We know that the standard equation of a line is given by

ax + by + c = 0.

On comparing our given equation with the above equation, we obtain that 3x - 2y = -1 is the equation of a line. To plot the graph of this equation, we need to find out at least two sets of values of (x, y).

We are asked to find out the value of x when y = 2.

At y = 2, we have

3x - 2(2) = -1.

⇒ 3x - 4 = -1

⇒ 3x = 4 - 1 = 3

⇒ x = 3/3 = 1

∴ The value of x is 1 when y = 2.

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