Which of the following would produce a graph that is the reflection of f(x)= (x−3)2−4 across the x-axis?

Can someone explain the elimination method to me for this problem?

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?