Undefined slope ! Help I have a math question

Question

my question says " through (-4,1) with and undefined slope ) I'm supposed to write it in slope intercept form .

Answer 1

through (-4,1) with and undefined slope ... you mean AN UNDEFINED SLOPE.

 

Undefined slope means the line is vertical so its equation is simply  x = -4.

 

This type of line cannot be written in slope intercept form; it's the only kind of line whose graph is not a function.