High School Math : Understanding Polynomial Functions

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #1 : Understanding Polynomial Functions

It took Jack 25 minutes to travel 14 miles, what was Jack's average speed in mph?

Possible Answers:

Correct answer:

Explanation:

* We have to change the time from minutes to hours, there are 60 minutes in one hour. 

 

Example Question #2 : Understanding Polynomial Functions

Let and .  Evaluate .

Possible Answers:

Correct answer:

Explanation:

Substitute into , and then substitute the answer into .

 

 

Example Question #3 : Understanding Polynomial Functions

Solve the following system of equations:

Possible Answers:

Infinite solutions.

Correct answer:

Explanation:

We will solve this system of equations by Elimination.  Multiply both sides of the first equation by 2, to get:

Then add this new equation, to the second original equation, to get:

or 

 

Plugging this value of  back into the first original equation, gives:

or 

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