Question

Write a point-slope equation for the line that has slope 4 and passes through the point (11,7). Do not use parentheses on the y side.

Answer 1

$\bf \begin{array}{ccccccccc} &&x_1&&y_1\\ % (a,b) &&(~ 11 &,& 7~) \end{array} \\\\\\ % slope = m slope = m\implies 4 \\\\\\ % point-slope intercept \stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-7=4(x-11)$