Question

Slope of a line is $3$ and $y$ intercept is $-4$. The equation of this line is

• A. $y=3x+4$
• B. $y=-3x-4$
• C. $y=3x-4$
• D. $y=-3x+4$

Answer 1

The correct option is C $y=3x-4$

Given that the slope of a line is $m=3$ and the $y-$intercept is $c=-4$.

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

$\therefore$ The required equation of line is $y=3x+(-4)$

$⟹y=3x-4$

Hence, option C is correct.