SOLUTION: The question is to find the domain of this function: 7x^2+5 and write it in interval notation I'm not even sure how to approach the problem to be honest...any help would be great

Algebra ->  Rational-functions -> SOLUTION: The question is to find the domain of this function: 7x^2+5 and write it in interval notation I'm not even sure how to approach the problem to be honest...any help would be great      Log On


   

Question 712708: The question is to find the domain of this function: 7x^2+5 and write it in interval notation
I'm not even sure how to approach the problem to be honest...any help would be greatly appreciated
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
The domain of a function is the set of valid input arguments, x values, for the function.


Any value for x is valid in the given function. So the domain is negative infinity to infinity. Since infinity is not finite, use () for the infinities


(-inf,inf)

Hope the solution helped. Sometimes you need more than a solution. Contact fcabanski@hotmail.com for online, private tutoring, or personalized problem solving (quick for groups of problems.)