Question

The mid-point of the line joining (−a, 2b) and (−3a, −4b) is 

Options

• (2a, 3b)

• (−2a, −b)

• (2a, b)

• (−2a, −3b)

Answer 1

(−2a, −b)

Explanation;

Hint:

Mid−points of line = `((x_1 + x_2)/2, (y_1 + y_2)/2)`

= `((-"a" - 3"a")/2, (2"b" - 4"b")/2)`

= `((-4"a")/2, (-2"b")/2)`

= (−2a, −b)