bumblebee123
Junior Member
- Joined
- Jan 3, 2018
- Messages
- 200
Can anyone explain the answer to this question? I think I'm missing something, or here's there's a rule I've forgotten.
question: the function f is defined for all values of x as f(x) = 2x^2 - 10x - 5
a) write 2x^2 - 10x - 5 in the form a(x + b)^2 + c
I managed to do this, the answer is 2 ( x - 5/2 )^2 - 35/4
b) Find the range of F
This is where I get stuck, I have no idea ( or maybe just can't remember ) what to do next!
any help would be really appreciated
question: the function f is defined for all values of x as f(x) = 2x^2 - 10x - 5
a) write 2x^2 - 10x - 5 in the form a(x + b)^2 + c
I managed to do this, the answer is 2 ( x - 5/2 )^2 - 35/4
b) Find the range of F
This is where I get stuck, I have no idea ( or maybe just can't remember ) what to do next!
any help would be really appreciated