Which inequality in vertex form represents the region less than or equal to the quadratic function with vertex (–6, 12) and includes the point (–9, 15) on the boundary?
Answer
A
y less-than-or-equal-to one-third (x minus 6) squared + 12
B
y less-than-or-equal-to one-third (x + 6) squared + 12
C
y less-than-or-equal-to 3 (x + 6) squared + 12
D
y less-than-or-equal-to 3 (x minus 6) squared + 12