Question

Identify the domain of the graph of y = -x^2 - 6x - 13
A: All real numbers
B: x ≤ -4
C: x ≥ -6
D: x ≥ -2

Answer 1

this is a parabola that opens up
vertex is at \(x=-\frac{b}{2a}=-\frac{-12}{2}=6\) second coordinate of the vertex is
\[6^2-12\times 6+3=36-72+3=-36+3=-33\] range is
\[y\geq -33\]

Answer 2

so none of the above, unless there is a typo on your question

Answer 3

damn satellite! you're a 100?!

Answer 4

well that isn't possible . the equation IS right !

Answer 5

the question is asking for the domain... it's all real numbers...