(see diagram) the gradient of the line joining the origin to the point a is 1/2. the distance between a and the origin is sqrt 2205. what are the coordinates of a?

Let the coordinate of point A be (x,y) .

ANd the given slope is 1/2 .

That is

And the distance between O and A is sqrt 2205, that is

Substituting 2y for x, we will get

And we have

So the point is (42,21)

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

1. perpendicular

2. parallel

3. perpendicular