Question

5. Show that the given points are collinear: (-1.5,-3), (6,-2) and (-3,4) ?( slope formula)​

Answer 1

Answer:

Hey! Your question is wrong

Point A must be (-1.5,3) Not ( -1.5,-3)

So, I am solving for that

Let A, B & C be (-1.5,3), (6,-2), (-3,4) respectively

So,

slope of AB

=(-2-(3)) /(6-(-1.5))

=(-2-3)/(6+1.5)

= -5/7.5

=-50/75

= -2/3

Slope of BC

=(4-(-2)) /(-3-6)

=(4+2)/-9

=6/-9

= -2/3

Since, slope of both AB & BC is same, so, A, B, C are collinear.

Hence, proved.

Hope it helps!!