Question

what is the general form of an equation with a point at (-10,4) and that has an undefined slope???

Answer 1

if slope is undefined, m=0
\[m=\frac{ \Delta y }{ \Delta x }\]
\[0=\frac{ y-4 }{x--10 }\]
0=y-4
y=4
that is the equation @kspik