Question

What would be the equation of a line having slope $9$ and passing through the point $(4,5)?$

• A. $y-5=9(x-4)$
• B. $y-9=5(x-4)$
• C. $y-4=9(x-5)$
• D. $y-4=5(x-9)$

Answer 1

The correct option is A $y-5=9(x-4)$

The point slope form of a line is given as:

$y-y_1=m(x-x_1)$ where 'm' is the slope and $(x_1,y_1)$ is the point from which the line is passing.

Slope $=9$ and point $=(4,5)$

Equation of line: $y-5=9(x-4)$