Question

What are the features of the quadratic function ƒ(x) = x2 + 10x + 21?

Answer 1

B.

Step-by-step explanation:

B.

Answer 2

B is the answer

Explanation:

The intercept is at x = 0 then y = 21 or (0,21) so A and D drop out.

The vertex (-5, -4) satisfies the equation but (-4,-5) does not so C drops out leaving B.