Question

The angle made by the straight line y = -x with the positive direction of x-axis is - a) -45° b)135° c)45° d)90°

Answer 1

Hey MATE!

The answer is 135°.

It is because the straight line goes like the one in the above image.

If we take y = 2 then x = -2 .
If we take y = 5 then x = -5.

So the angle with positive x -axis is 135°

Hope it helps

Hakuna Matata :))