Evaluating the Ratio of Functions

Oct 13, 2025 by miodeya.com 89 views

Understanding the Problem

To find the equivalent expression for $\left(\frac{r}{s}\right)(6)$ , we need to first understand what the notation $\left(\frac{r}{s}\right)(6)$ means. In this context, $\left(\frac{r}{s}\right)$ represents the ratio of the functions $r(x)$ and $s(x)$ , and the $(6)$ indicates that we need to evaluate this ratio at $x = 6$ .

Evaluating the Ratio of Functions

The ratio of functions $\left(\frac{r}{s}\right)$ can be evaluated by dividing the function $r(x)$ by the function $s(x)$ . In this case, we have:

\left(\frac{r}{s}\right)(x) = \frac{r(x)}{s(x)} = \frac{3x - 1}{2x + 1}

Evaluating the Ratio at $x = 6$

Now that we have the ratio of functions, we need to evaluate it at $x = 6$ . This means we need to substitute $x = 6$ into the ratio:

\left(\frac{r}{s}\right)(6) = \frac{3(6) - 1}{2(6) + 1}

Simplifying the Expression

To simplify the expression, we can evaluate the numerator and denominator separately:

\left(\frac{r}{s}\right)(6) = \frac{18 - 1}{12 + 1} = \frac{17}{13}

Comparing with the Options

Now that we have the simplified expression, we can compare it with the options:

A. $\frac{3(6) - 1}{2(6) + 1}$
B. $\frac{8}{2(6) + 1}$
C. $\frac{36 - 1}{28 + 1}$
D. (no option)

Conclusion

Based on our evaluation, the expression equivalent to $\left(\frac{r}{s}\right)(6)$ is:

\frac{3(6) - 1}{2(6) + 1}

This is option A.

Final Answer

The final answer is option A.

Understanding the Problem

Q&A

Q: What is the ratio of functions $\left(\frac{r}{s}\right)$ ?

A: The ratio of functions $\left(\frac{r}{s}\right)$ can be evaluated by dividing the function $r(x)$ by the function $s(x)$ . In this case, we have:

\left(\frac{r}{s}\right)(x) = \frac{r(x)}{s(x)} = \frac{3x - 1}{2x + 1}

Q: How do we evaluate the ratio at $x = 6$ ?

A: To evaluate the ratio at $x = 6$ , we need to substitute $x = 6$ into the ratio:

\left(\frac{r}{s}\right)(6) = \frac{3(6) - 1}{2(6) + 1}

Q: Can we simplify the expression?

A: Yes, we can simplify the expression by evaluating the numerator and denominator separately:

\left(\frac{r}{s}\right)(6) = \frac{18 - 1}{12 + 1} = \frac{17}{13}

Q: How do we compare the simplified expression with the options?

A: We can compare the simplified expression with the options:

A. $\frac{3(6) - 1}{2(6) + 1}$
B. $\frac{8}{2(6) + 1}$
C. $\frac{36 - 1}{28 + 1}$
D. (no option)

Q: Which option is equivalent to the simplified expression?

A: Based on our evaluation, the expression equivalent to $\left(\frac{r}{s}\right)(6)$ is:

\frac{3(6) - 1}{2(6) + 1}

This is option A.

Conclusion

In this Q&A article, we have discussed the problem of finding the equivalent expression for $\left(\frac{r}{s}\right)(6)$ , where $r(x) = 3x - 1$ and $s(x) = 2x + 1$ . We have evaluated the ratio of functions, simplified the expression, and compared it with the options. The final answer is option A.

Final Answer

The final answer is option A.