### All High School Math Resources

## Example Questions

### Example Question #33 : Functions And Graphs

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 #34 : Functions And Graphs

Let and . Evaluate .

**Possible Answers:**

**Correct answer:**

Explanation:

Substitute into , and then substitute the answer into .

### Example Question #35 : Functions And Graphs

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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