g(x) = sqrt.(25 - x^2)

r(x) = |2x - 3|

plz help me thanks!

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- Oct 14th 2008, 02:54 PMNeedHelp18Find the domain and range
g(x) = sqrt.(25 - x^2)

r(x) = |2x - 3|

plz help me thanks! - Oct 14th 2008, 03:49 PMSoroban
Hello, NeedHelp18!

Quote:

Find the domain and range.

We can see that must not be negative.

We have: .

Then we have: .

Multiply by -1: .

And we have: .

. .

We see that is never negative: .

When (maximum value)

. .

Quote:

We can usevalue for*any*

. .

An absolute value is never negative: .

As

. .