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Maxima & Minima · Question 10 of 80

Question 10

MediumOriginal question

Read the two statements and choose the correct option.

I. f(x)=∣x−1∣+2f(x) = \lvert x - 1 \rvert + 2 has minimum value 2.

II. f(x)=∣x−1∣+2f(x) = \lvert x - 1 \rvert + 2 has maximum value 3.

Options for question 10

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. ∣x−1∣≥0\lvert x - 1 \rvert \ge 0, with 0 at x=1x = 1, so the minimum value is 2: I is true.

  2. ∣x−1∣\lvert x - 1 \rvert grows without limit, so there is no maximum: II is false.

Concept
Extreme values with an absolute value
Typical time
90 s
Your time
—
The rule this testsMaximum and minimum values
Practise this chapter →

Ten questions from Maxima & Minima, at your own pace.

Practise this chapter →

Ten questions from Maxima & Minima, at your own pace.