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Maths C3 Domain and Range QUestion watch

1. What is the range of g? Apparently its [1,infinity) but wouldnt it be (infinity,infinity)
2. What is the graph or function?
3. Since x^2 is always>0 then so is X^2+1. However since x can also equal zero from the domain, the range becomes g(x)>or equal to 1.
4. (Original post by thekidwhogames)
What is the graph or function?
above
Since x^2 is always>0 then so is X^2+1. However since x can also equal zero from the domain, the range becomes g(x)>or equal to 1.
Oh right so instead of inputting -infinity you input zero then
6. (Original post by aceplayyt)
above
For g:

The domain is any real x. Well you know the smallest value of g is 1 meaning that the range is g(x)>=1.

For f:

You know the domain is x>=0

You know therefore the smallest value is e^0 = 1.

So f(x) >=1.

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