To find: The correct statement from the given choices.
Answer to Problem 1QQ
The correct option is option (C).
Explanation of Solution
Given information:
The function is
Concept used:
If the left hand limit, right hand limit and limit are equal at a point then the function is said to be continuous at that point.
If the right hand derivative and left hand derivative of a function are equal then the function is said to be differentiable.
Calculation:
The function is
Continuity test:
Right hand limit of the function is shown below.
Left hand limit of the function is shown below.
The value of limit at
Since all the three values are equal, so the function is continuous at
Differentiability test:
Right hand derivative can be calculated as shown below.
Left hand derivative can be calculated as shown below.
The function is not differentiable at
From the differentiability test it is also clear that function has a corner at
Conclusion: The function is continuous and has corner
Chapter 2 Solutions
AP CALCULUS TEST PREP-WORKBOOK
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