How do you find the domain and range of f(x)=x^2−25f(x)=x225?

1 Answer
Mar 29, 2017

Domain is x in RR
Range is f(x) >= -25

Explanation:

f(x)=x^2-25 . Domain (possible value of x) is any real number.
So domain is x in RR

Range (possible value of f(x)) : This is a parabola , vertex is 0, -25 and opens upwards. so minimum point is 0, -25

So range is f(x) >= -25 graph{x^2-25 [-80, 80, -40, 40]} [Ans]