T1.2 · Topic 1.2

Limit notation

Multiple choiceNo calculator

Which statement is equivalent to lim⁡x→3f(x)=5\displaystyle\lim_{x \to 3} f(x) = 5?

Multiple choiceNo calculator

Which limit statement says: as xx approaches 22 from the left, the values of g(x)g(x) decrease without bound?

Multiple choiceNo calculator

It is known that lim⁡x→1f(x)=4\displaystyle\lim_{x \to 1} f(x) = 4. Nothing else is known about ff. Which of the following must be true?

Multiple choiceNo calculator

The graph of ff is shown. Which statement is true?

Free response · 3 pointsNo calculator

A function gg satisfies lim⁡x→2−g(x)=5\displaystyle\lim_{x \to 2^-} g(x) = 5, lim⁡x→2+g(x)=5\displaystyle\lim_{x \to 2^+} g(x) = 5 and g(2)=1g(2) = 1.
(a)
Find lim⁡x→2g(x)\displaystyle\lim_{x \to 2} g(x), or explain why it does not exist.
(1 point)

Write the setup as on paper, with units where asked.

(b)
Explain what the statement lim⁡x→2g(x)=5\displaystyle\lim_{x \to 2} g(x) = 5 says about the values of gg, and explain why it does not contradict g(2)=1g(2) = 1.
(2 points)

Write the setup as on paper, with units where asked.

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