Question

The value of a so that the point (3,a) lies on the line represented by 2x-3y=5 ,is (a) 1⁄2 (b) 1/3 (c) -1/2 (d) -1/3

Answer 1

Answer:

(b) 1/3

Step-by-step explanation:

Put x=3, y=a

2 x 3 - 3 x a = 5

6-5=3a

a=1/3

Answer 2

As it is given that if (3,a) lies on the line represented by 2x-3y=5

Then the point will surely satisfy the equation i.e. the root of the equation will be (3,a).

Putting x=3

2 x 3 -3y=5

6-5=3y

So, y= 1/3.

Therefore it is only the value of a in (3,a). Here a represents the y ordinate.

Hope it helps you.