katelynguthriee katelynguthriee

08-03-2017
Mathematics

contestada

Points (1,3), (-4,7), and (-29,K) are collinear. Find K.

How do i solve this?

Respuesta :

ChandrikaP ChandrikaP

08-03-2017

Co linear points have same slope
Points (1,3), (-4,7), and (-29,K)
m1,2=7-3/-4-1=-4/5

m2,3=K-7/-29+4
m2,3=K-7/-25

-4/5=K-7/-25
4/5=K-7/25
4=K-7/5
20=K-7
K=27

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