What is the range of the function f(x)=x2x2?

1 Answer
Aug 31, 2017

[94,+)

Explanation:

complete the square on f(x)

f(x)=x22(12)x+14142

f(x)=(x12)294

for all x,(x12)20

the minimum value of f(x) is therefore 94

range is [94,+)
graph{x^2-x-2 [-10, 10, -5, 5]}