How do you find the domain and range of $f (x) = x^{2} - 25$ $f(x)=x^2−25$ ?

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Answer 1 · 2017-03-29T11:31:52

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

$f(x)=x^2-25$ . 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]

How do you find the domain and range of f(x)=x^2−25f(x)=x2−25f(x)=x^2−25?