Given:
The slope of the line is 3.
The line passes through the point (2,-1).
To find:
The equation of the line.
Solution:
Point slope form of a line: If a line passes through the point [tex](x_1,y_1)[/tex] with slope m, then the equation of the line is
[tex]y-y_1=m(x-x_1)[/tex]
The line passes through the point (2,-1) with slope 3. So, the equation of the line is
[tex]y-(-1)=3(x-2)[/tex]
[tex]y+1=3(x-2)[/tex]
Therefore, the required equation is [tex]y+1=3(x-2)[/tex]. Hence, all the options are incorrect.
