Question

x+2y=12 which represents a point on the number line​

Answer 1

We know that the point which lies on x-axis has its ordinate 0.

So, putting y=0 we get:

x+2×0=8⇒x=8

hence, (8,0) lies on the x-axis

(ii) We know that the point which lies on y-axis has its abscissa 0.

So, putting x=0 we get:

0+2y=8⇒2y=8⇒y=4

hence, (0,4) lies on the y-axis