Monday
September 1, 2014

Homework Help: Advanced functions/precalculus

Posted by Diane on Wednesday, January 15, 2014 at 2:24am.

1. Given f(x)=x^2 and g(x)=x+2, determine in standard form:
a) g(f(x))
b) when f(g(x))=g(f(x))

2. If f = {(-10, 1), (-1, -1), (10, 0), (11, 7)} and g = {(-1, -1), (0, 10), (1, -10), (7, 11)} for how many values of x is f x g defined? Explain

3. Given f(x) = -2x + 3 and g(x) = 3x + 4, x ε R, use the sketches of both functions to graph (fg)(x) on the same graph. Show your work.

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