Worksheets — Set 2

Algebra I · Functions and function notation

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. If f(x) = 5x − 4, find f(6) = ___ 2. Domain of f(x) = 1/(x − 5): ___ 3. Identify the y-intercept of the graph sketched: ___

_See printable PDF for diagram._

Written practice

1. If f(x) = 4x − 3, find f(5) = ___ 2. Domain of f(x) = 1/(x − 4): ___ 3. Identify the y-intercept of the graph sketched: ___ 4. Where is f(x) increasing? Interval: ___ 5. Compare f(0) and f(6): ___ 6. What does f(4) mean in context? 7. If f(x) = 7x − 6, find f(8) = ___ 8. Domain of f(x) = 1/(x − 7): ___

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More written practice

1. Compare f(0) and f(9): ___ 2. What does f(7) mean in context? 3. If f(x) = 10x − 9, find f(11) = ___ 4. Domain of f(x) = 1/(x − 10): ___ 5. Compare f(0) and f(12): ___ 6. What does f(10) mean in context?

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Patterns and rules

1. If f(x) = 21x − 20, find f(22) = ___ 2. Domain of f(x) = 1/(x − 21): ___ 3. Identify the y-intercept of the graph sketched: ___

_See printable PDF for diagram._

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Parent tip: Sketch graphs from key points