Chapter 8.1, Problem 4AGP

To determine

To calculate: To identify the independent and dependent variables and write the function to represent the total distance travelled in any number of hours spent whale watching

Answer to Problem 4AGP

The function to represent the total distance travelled in any number of hours spent whale watching is $y=5.5x$

Explanation of Solution

Given information: A whale watching boat travelled at a speed of $5.5$ miles per hour.

Formula Used:

Speed is defined as Distance travelled divided by time take

  $Speed=\frac{Distance}{Time}$

Calculation:

Given the speed of whale watching boat is $5.5$ miles per hour.

Here, time is independent variable and distance is dependent variable.

Function to represent the total distance travelled in $x$ number of hours be $y$

Thus,

  $Distance=Speed\times Time$

Substituting the values,

  $\begin{array}{l}y=5.5\times x\\ y=5.5x\end{array}$

Conclusion:

Hence, the required function is $y=5.5x$