- Composition of Functions,
a selection of answers from the Dr. Math archives.
- Why Do We Have Functions?
- Why do we have functions? Why do we have things like (g(x) = x + 3,
find g[f(2)] ?
- Composite Functions
- My students can't understand composite functions.
- Composition of Functions
- How do I find f(g(x)) if f(x) = x+2 and g(x) = 3x-1?
- Evaluating Composite Functions
- If f(x) = 3, and g(x) = x^2 + 1 divided by the square root of (x^2 -1),
how do you evaluate the composite function of f composed with g (f circle g)?
- Composing Functions
- I'm trying to find f-of-g where f(x) = 2x and g(x) = 3x^2 + 1.
What happens when you compose two functions?
- Domain of a Composite Function
- I don't completely understand how to find the domain of a composite
function. Could you please explain it?
- Composition Functions with
Added x Value
- If x = 1, evaluate g(f(f(x))). I'm confused with this added value
of x = 1.
- Composite Functions Using Logarithms
- Suppose f and g are functions defined by f(x)=x+2 and g(x)=x.
Find all x>-2 for which: 3^[g(x)*logbase3 f(x)]=f(x).
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