Question

7.
Show that the following points are collinear.(-1, 7), (3,-5), (4, -8).​

Answer 1

1. Answer:  Step-by-step explanation: To show that the points are collinear, you will have to consider gradients btn the points. If all the points will have the same gradient btn them, then they are said to be collinear. First: gradient of point (-1,7) and (3,-5) Recall: gradient(m)= change in Y/change in X Therefore, (-5-7)/(3-(-1)=-3 Second:gradient btn point (3,-5) and (4,-8) m=(-8-(-5))/(4-3)=-3 Third:gradient btn pointv(-1,7) and (4,-8) m=(-8-7)/(4-(-1))=-3  ;Since all the three points have the same gradient of -3 then the points are collinear.

Answer 2

Answer:

means??..

Step-by-step explanation:

i am so sorry..I really didn't get your answer....plz help me to understand it..