Find the values of and if the line is parallel to the line joining and and also…

MATHEMATICS · Subjective · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane

Problem

Find the values of

a

and

b

if the line

y=ax+b

is parallel to the line joining

(1,2)

and

(3,8)

and also passes through the point

(4,5)