Question

Q1)Find the value of k if the points A=(8,1) B = (3,-4)
c = (2, K) are collines. [K= - 5]

Q2) Find the value of K if the points A=(K, 3) B=(6,-2) and
c = (-3,4) are colleras. [K= -3/2]​

pls answer this step by step

Answer 1

Answer:

Since the given points are collinear, they do not form a

triangle, which means area of the triangle is Zero.

Area of a triangle with vertices (x1,y1) ; (x2,y2)  and (x3,y3)  is ∣∣∣∣2x1(y2−y3)+x2(y3−y1)+x3(y1−y2)∣∣∣∣

Hence, substituting the points (x1,y1)=(8,1) ; (x2,y2)=(k,−4)  and (x3,y3)=(2,−5)

the area formula, we get

∣∣∣∣28(−4+5)+k(−5−1)+2(1+4)∣∣∣∣=0

=

Answer 2

Answer:

Happy Birthday in advance

u can report if u want

let me help u in cake or cupcake

1. brownie
2. cake
3. cupcakes

Step-by-step explanation:

the cake is brought for my mother's birthday

and it is red velvet

nice flavour