Question 1047163
Easily factorable left quadratic member,  {{{(x-2)(x+4)=0}}}


Zeros at 2 and -4, and the vertex is in the exact middle of these; but if you want to just graph the equation, this will be just the two points on a single number line.  Notice, quadratic expression equaling 0.


(if in two dimensions, vertex would occur at x=-1).



{{{number_line(400,-5,5,-4,2)}}}