Question

The points (other than the origin) for which the abscissa is equal to the ordinate lie in which quadrants?

Answer 1

Answer:

now a/c to question, abscissa is equal to ordinate. means The point will be like as (a, a) or (-a, -a) . from above explanation this type of point only possible in 1st and 3rd quadrant. so, answer is quadrant I and III.