Limits of Constant and Linear Functions

The limits of constant and linear functions are are presented with examples and detailed solutions. Exercises are also included with their answers.

Limits of Constant and Linear Functions

We present the limits of constant and linear functions.
1. For
f(x) = c , where c is a constant ,
formula of limits for a constant function
2. For
f(x) = x , basic linear function
formula of limits of f(x) = x

Examples with Detailed Solutions

Example 1

Find the following limits.
 Find Limits of a Constant Function

Solutions to Example 1:
1.
The function is constant and equal to -2, we apply 1.a above, hence \( \)\( \)\( \)\( \)
\( \lim_{x\to\ 6} (-2) = -2 \)
2.
The function is constant and equal to 0, we apply 1.c above, hence
\( \lim_{x\to\ -\infty} (0) = 0 \)
2.
The function is equal to x, we apply 2.b above, hence
\( \lim_{x\to\ +\infty} (x) = +\infty \)

Exercises

Find the following limits.
1. \( \lim_{x\to\ -\infty} (6) \)
2. \( \lim_{x\to\ -5} (0) \)
3. \( \lim_{x\to\ -\infty} x \)
4. \( \lim_{x\to\ 1/2} (x) \)


Answers to Above Exercises

1. \( \lim_{x\to\ -\infty} (6) = 6 \)
2. \( \lim_{x\to\ -5} (0) = 0 \)
3. \( \lim_{x\to\ -\infty} x = -\infty \)
4. \( \lim_{x\to\ 1/2} (x) = 1/2 \)

More References and links on Limits

Calculus Tutorials and Problems
Limits of Absolute Value Functions Questions
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