(i) Using the coordinates of the two points and , find the equation of line in…
MATHEMATICS · Subjective · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane
Problem
(i) Using the coordinates of the two points A(3,−2) and B(−1,4), find the equation of line AB in general form.
(ii) Write the same equation in slope–intercept form.
(iii) Without calculating any additional numerical value, state whether the line rises or falls as x increases and justify your answer from the slope obtained in part (ii).