Select the correct answer.
This table represents a quadratic function.
х
у
1
3
3
-3
5
-5
7
بل انبا
9
Which statement about this function is true?
O A. The value of a is negative, so the vertex is a minimum.
ОВ. The value of a is positive, so the vertex is a minimum.
OC. The value of a is positive, so the vertex is a maximum.
OD. The value of a is negative, so the vertex is a maximum.
I
Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares
What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?
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