Flashcards: Domain and range
Cut along the dashed lines and fold each card on the dotted line: question on the front, answer on the back.
What is the domain of f(x) = √(x − 1) (real numbers only)?
x ≥ 1
What is the domain of f(x) = √(5 − x) (real numbers only)?
x ≤ 5
What is the domain of f(x) = √(−5 − x) (real numbers only)?
x ≤ −5
What is the domain of f(x) = 1/√(x + 7) (real numbers only)?
x > −7
What is the smallest x in the domain of f(x) = √(5x − 10)?
2
What is the domain of f(x) = √(x + 8) (real numbers only)?
x ≥ −8
What is the smallest x in the domain of f(x) = √(4x − 12)?
3
What is the domain of f(x) = 1/(x − 4) (real numbers only)?
x ≠ 4
What is the domain of f(x) = √(−2 − x) (real numbers only)?
x ≤ −2
What is the domain of f(x) = 1/(x + 8) (real numbers only)?
x ≠ −8
What is the smallest x in the domain of f(x) = √(3x)?
0
What is the smallest x in the domain of f(x) = √(5x + 10)?
-2
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