Question

Which answer is an equation in point-slope form for the given point and slope?

point: (1,−9) ; slope: 2

y+9=2(x−1)

y+9=2(x+1)

y−9=2(x+1)

y−9=2(x−1)

Answer 1

Answer:

y-9=(x-1)

Step-by-step explanation: the formula is y-k=m(x-h)

Answer 2

$\bf (\stackrel{x_1}{1}~,~\stackrel{y_1}{-9})~\hspace{10em} slope = m\implies 2 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-9)=2(x-1)\implies y+9=2(x-1)$