Question

How do you solve this?

Answer 1

$\bf y = 3x\implies y = 3x+0\impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}~\hfill \begin{cases} \stackrel{slope}{3}\\ \stackrel{y-intercept}{(0,0)} \end{cases} \\\\[-0.35em] ~\dotfill$

$\bf y-4x-1\impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}~\hfill \begin{cases} \stackrel{slope}{-4}\\ \stackrel{y-intercept}{(0,-1)} \end{cases}$