Question

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

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

Answer 1

f(x)=a(x-h)^2+k where h,k is the vertex is the general form to get you started.

Answer 2

so is d

Answer 3

No among other things possible the x coordinate is wrong for the vertex.

Answer 4

ohhh ok

Answer 5

Note it is x-h so h must be -1

Answer 6

ok

Answer 7

A is negative so it must open down also

Answer 8

*a

Answer 9

so is b

Answer 10

I think so.

Answer 11

b is correct.

Answer 12

https://www.desmos.com/calculator/fyzmarpswv

Answer 13

The graph should make everything clear.