Grade 12 Function Evaluation Worksheet
Evaluate and understand various types of functions including polynomial, rational, and piecewise functions.
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Grade 12 Function Evaluation
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Follow the instructions for each section carefully. Show all your work where necessary.
1. Given the function f(x) = 3x² - 5x + 2, find f(-2).
2. If g(x) = (x + 3) / (x - 1), evaluate g(4).
Consider the piecewise function h(x) = { 2x + 1, if x < 0; x² - 3, if x ≥ 0 }
3. h(-5) =
4. h(0) =
5. h(3) =
6. Which of the following is the value of f(x) = |2x - 7| when x = 2?
-3
3
7
-7
7. For the function k(x) = √(x + 5), what is k(4)?
√5
3
9
Undefined
8. The cost C (in dollars) of producing x units of a product is given by the function C(x) = 0.05x² + 20x + 500. Find the cost of producing 100 units.
9. Use the graph below to estimate f(3) and f(-2).
f(3) ≈
f(-2) ≈