Problem

q, left parenthesis, x, right parenthesis, equals, start fraction, x, start superscript, 2, end superscript, plus, 6, x, plus, 8, divided by, x, plus, 4, end fraction
At each of the following values of x, select whether q has a zero, a vertical asymptote, or a removable discontinuity.
 
Zero
Vertical Asymptote
Removable Discontinuity
x, equals, minus, 4
x, equals, minus, 2