Math Problem Statement
Solution
The function in the problem is given as:
The problem asks which statements are true, and these statements involve limits and the value of the function at . Let's analyze the behavior of the function step by step.
Step 1: Analyzing the function and its behavior near
We need to break down the absolute value:
- For , , so .
- For , , so .
Thus, we have two cases:
- For , .
- For , .
Step 2: Evaluating the limit as
- For , .
- For , .
Since the left-hand limit () and the right-hand limit () are not equal, the limit as does not exist.
Step 3: Checking
At , the function is undefined because it results in a division by zero. Hence, does not exist.
Step 4: Analyzing the statements
Let's evaluate the given statements based on our analysis:
- (a) — False, as .
- (b) — Irrelevant, as the function does not involve behavior as .
- (c) does not exist — True, since results in division by zero.
- (d) — True, as .
- (e) exists — False, since the limits from the left and right do not match.
- (f) does not exist — True, since the left and right limits are not equal.
- (g) — False, as the limit does not exist.
- (h) — True, since .
Final Answer:
The correct statements are (c), (d), (f), and (h).
Would you like more details on any part of the solution? Here are 5 related questions you can explore:
- How do you handle absolute value functions when calculating limits?
- What are the conditions for a limit to exist at a point?
- Why does division by zero make a function undefined?
- What is the difference between left-hand and right-hand limits?
- How does the behavior of a function change around a point of discontinuity?
Tip: When evaluating limits, always consider the left-hand and right-hand limits separately to check for discontinuities.
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Math Problem Analysis
Mathematical Concepts
Limits
Absolute Value
Continuity
Discontinuity
Formulas
f(x) = |9 - 3x| / (x - 3)
Limit calculation: left-hand and right-hand limits
Theorems
Limit Definition
Continuity at a Point
Discontinuity and Limits
Suitable Grade Level
Grade 11-12
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