Select the correct answer.
This table represents a quadratic function.
X= 1,3,5,7,9. Y=3,-3,-5,-3,3
Which statement about this function is true?
A.
The value of als negative, so the vertex Is a minimum.
B.
The value of a ls positive, so the vertex is a minimum.
C.
The value of a is positive, so the vertex is a maximum.
D.
The value of a is negative, so the vertex is a maximum.