Question

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

Answer 1

Slope of the line BC is 7.
Slope of BC =

\[\frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - \left( - 5 \right)}{1 - k} = 7\]

\[ \Rightarrow \frac{7}{1 - k} = 7\]

\[ \Rightarrow 1 - k = 1\]

\[ \Rightarrow k = 0\]