Questions: Problem 3: Sketch a graph of a function that satisfies the following conditions (note: there is no one unique answer), and be sure to label all the points:
a. a continuous function with an absolute minimum of -3 at x=-2 and a local minimum of -1 at x=2.
b. a continuous function with no absolute extrema but with a local minimum of -2 at x=-1 and a local maximum of 2 at x=1.
c. a continuous function that is increasing on (-∞, 2) and decreasing on (2,+∞).
Transcript text: Problem 3: Sketch a graph of a function that satisfies the following conditions (note: there is no one unique answer), and be sure to label all the points:
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Math 22 - College Algebra with Analytic Geometry and Applications II
Homework 2
a. a continuous function with an absolute minimum of -3 at $x=-2$ and a local minimum of -1 at $x=2$.
b. a continuous function with no absolute extrema but with a local minimum of -2 at $x=-1$ and a local maximum of 2 at $x=1$.
c. a continuous function that is increasing on $(-\infty, 2)$ and decreasing on $(2,+\infty)$.
Solution
Solution Steps
Step 1: Identify the conditions for the function
We need to create a continuous function with the following properties:
An absolute minimum of -3 at \( x = -2 \) and a local minimum of -1 at \( x = 2 \).
Step 2: Construct a function that meets the conditions
One possible function that meets these conditions is:
\[ y = (x + 2)^2 - 3 \]
Step 3: Identify the conditions for the second function
We need to create a continuous function with the following properties:
No absolute extrema but with a local minimum of -2 at \( x = -1 \) and a local maximum of 2 at \( x = 1 \).
Step 4: Construct a function that meets the conditions
One possible function that meets these conditions is:
\[ y = -x^3 + 3x \]
Step 5: Identify the conditions for the third function
We need to create a continuous function with the following properties:
Increasing on \( (-\infty, 2) \) and decreasing on \( (2, +\infty) \).
Step 6: Construct a function that meets the conditions
One possible function that meets these conditions is:
\[ y = -x^2 + 4x \]