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

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) (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.)

RELATED QUESTIONS
I'm having trouble writing the domain as a interval notation, but here is the question: (answered by jim_thompson5910)

The domain of the function: (1/ (sqrt (2x + 15)) and ( (x+2) / (x^2 - 225) ). I don't... (answered by lwsshak3)

I'm not sure how to do this, an explanation would be greatly appreciated! Find the... (answered by MathLover1,Boreal)

Find the domain of the function algebraically and write it using interval notation:... (answered by richard1234,lwsshak3)

Find the domain of the function algebraically and write it using interval notation:... (answered by josgarithmetic)

Find the domain of the function algebraically and write it using interval notation: f(x)= (answered by Fombitz)

Hi, here is my question. I need to find the domain of log (12-3x) and write it in... (answered by robertb,user_dude2008)

What is the domain of this function and how would I write the domain in interval... (answered by josgarithmetic,MathLover1)

I do not know how to find this answer please help. What is the domain of the function... (answered by robertb)