Question

Find k, if B(k,5)C(1,2) and slope of the line is 7.

Answer 1

slope of line=y2-y1/x2-x1

7=2-3/1-k

7=-1/1-k

7(1-k)= -1

7-7k= -1

-7k= -1-7

-7k= -8

7k=8

k=8/7