Question

The point slope form of a line is given by:

• A. $y-y_1=m(x-x_1)$
• B. $y-y_1=\frac{1}{m}(x-x_1)$
• C. $y+y_1=\frac{1}{m}(x+x_1)$
• D. $y=mx+b$

Answer 1

The correct option is A $y-y_1=m(x-x_1)$

The $\underset{–}{\text{point slope}}$ 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.

The $\underset{–}{\text{slope intercept}}$ form of a line which is $y=mx+b$ where 'm' is the slope and 'b' is the $y$- intercept of the line.
Option (a) is correct.