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September 21, 2014

September 21, 2014

Posted by **Madison** on Tuesday, October 9, 2012 at 12:42am.

f(x)=Square root of 4-x; g(x)=1-3x^2

Show work.

- Math -
**Steve**, Tuesday, October 9, 2012 at 4:45amf(g) = sqrt(4-g) = sqrt(4-(1-3x^2)) = sqrt(3+3x^2)

f(g(2)) = sqrt(3+12) = sqrt(15)

or, g(2) = 1-12 = -11

f(-11) = sqrt(4+11) = sqrt(15)

do g(f) the same way.

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