Thread: Finding the co-ordinates

How would you solve this question?

The line meets the x-axis at the point R. Work out the coordinates of R.

Originally Posted by Mist

How would you solve this question?

The line meets the x-axis at the point R. Work out the coordinates of R.

You are supposed to know that the point R has the coordinates R(r, 0). (All points on the x-axis have the y-coordinate zero).

Plug in these values into the given equation and solve for r.

Spoiler:

I've got