Question

The equation of a straight line is y = 20 – X.

If the x value of a point on the line is 14, what is the y value of this point?

Answer 1

Given:

The equation of a straight line is

`y=20-x`

The x value of a point on the line is 14.

To find:

The y value of this point.

Solution:

If a point (x,y) lines on line, then the equation of line must be stratified by that point.

We have, the equation of a straight line.

`y=20-x`

Putting x=14, we get

`y=20-14`

`y=6`

Therefore, the y-value is 6 when the x-value is 14.