Question

Find the equation of the line whose slope and y-intercept are given Slope$=2$, y-intercept$=-4$.

Answer 1

We know that the equation of a line is $y=mx+c$ where $m$ is the slope of the line and $c$ is the y-intercept.

Therefore, with slope $m=2$ and y-intercept $c=-4$, the equation of a line is:

$y=mx+c\Rightarrow y=(2\times x)+(-4)\Rightarrow y=2x-4\Rightarrow 2x-y-4=0$

Hence, the equation of a line is $2x-y-4=0$.