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

1 Answer
Mar 29, 2017

Answer:

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]