Evaluating Functions|Please Help!

Question

1. f(1) = ?
2. f(-5) = ?
3. f(10) = ?

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Answer 1

Hi Candi,

To evaluate f(x), just substitute the number you are given into the appropriate expression given interval:

1. f(1) = 1 + 4 = 5 Remember, you were given f(x) = x + 4, -1 < x < 2 Keep those intervals in mind.
2. f(-5) = (-5)^2 + 1 = 26 Again, remember the interval f(x) = x² + 1, x <= -1
3. f(10) = 5 Value of f(x) would be the same for any x > =2

I hope this helps.