Question

Choose the equation below that represents the line that passes through the point (7, −2) and has a slope of −3.

Answer 1

The answer should be y=-3x+19

Answer 2

$\bf (\stackrel{x_1}{7}~,~\stackrel{y_1}{-2})~\hspace{10em} slope = m\implies -3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-2)=-3(x-7) \\\\\\ y+2=-3x+21\implies y=-3x+19$