1. Laura gave the clerk $20 for purchases of a
1 answer:
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The composite function works like this:
- Take a number
as input
- Evaluate h(x) = 3x. Let's call this output z.
- Evaluate g(x) = 1/(z+2)
So, if we substitute back z = 3x, the final output is 1/(3x+2). We know that the denominator of a fraction can't be zero, so we must impose