Write an equation of the line that passes through the point (-1,4) with slope 2

For this case, we have:
 
 Where,
 m: slope of the linear function
 (xo, yo): ordered pair that belongs to the linear function.
 We have then that the slope of the line is:
 
 The line passes through the point (-1,4), therefore we have:
 
 Rewriting we have:
 
 
 An equation of the line that passes through the point (-1.4) with slope 2 is:
 

Im sorry but what on