Distance Between Two Points (Grade 10 NSC Matric Mathematics): Quizzes

As an ordered pair $(x, y)$

It is always positive

Pythagoras theorem

$d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}$

Because $(x_1 - x_2)^2 = (x_2 - x_1)^2$

$9.5$ units

Two possible values

$AC = x_2 - x_1$

Draw a sketch

$y = -3$ or $y = 21$