Question

For the function f(x) = –(x + 1)^2 + 4, identify the vertex, domain, and range.

a. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≥ 4.
b. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≤ 4.
c. The vertex is (1, 4), the domain is all real numbers, and the range is y ≥ 4.
d. The vertex is (1, 4), the domain is all real numbers, and the range is y ≤ 4.

Answer 1

the answer is B

Explanation:

the domain equals to be (-1,4) and a equals more than 0 so it is y ≤ 4

Answer 2

b; you can graph the function on a graphic calculator or use algebra find each of the desired aspects