Question

Slope of the straight line $ax+by+c=0$ is $\frac{-a}{b}$. State whether it is true or false.

• A. True
• B. False

Answer 1

The correct option is A

True

Given straight line can be written as

$ax+by+c=0$

$by=-ax-c$

$y$ = $\frac{-a}{b}x-\frac{c}{a}$ ............ (1)

Comparing (1) with $y=mx+c$

$m=\frac{-a}{b}$

Therefore, slope of the line = $\frac{-a}{b}$

Given statement is true