Answer
\[
\begin{array}{l}
f(-3) = \frac{29}{11} \\
f(2) = \frac{11}{14} \\
f(-a) = \frac{-8a - 5}{-5a + 4} \\
-f(a) = \frac{-8a + 5}{5a + 4} \\
f(a + h) = \frac{8a + 8h - 5}{5a + 5h + 4}
\end{array}
\]
Solution
Evaluate the expression by following steps:
- step0: Evaluate:
\(\frac{8x-5}{5x+4}\)
- step1: Substitute:
\(\frac{8\left(-3\right)-5}{5\left(-3\right)+4}\)
- step2: Multiply the numbers:
\(\frac{-24-5}{5\left(-3\right)+4}\)
- step3: Multiply the numbers:
\(\frac{-24-5}{-15+4}\)
- step4: Subtract the numbers:
\(\frac{-29}{-15+4}\)
- step5: Add the numbers:
\(\frac{-29}{-11}\)
- step6: Reduce the fraction:
\(\frac{29}{11}\)
Substitute \( x=2 \) into the expression \( \frac{8 x-5}{5 x+4} \).
Evaluate the expression by following steps:
- step0: Evaluate:
\(\frac{8x-5}{5x+4}\)
- step1: Substitute:
\(\frac{8\times 2-5}{5\times 2+4}\)
- step2: Multiply the numbers:
\(\frac{16-5}{5\times 2+4}\)
- step3: Multiply the numbers:
\(\frac{16-5}{10+4}\)
- step4: Subtract the numbers:
\(\frac{11}{10+4}\)
- step5: Add the numbers:
\(\frac{11}{14}\)
Substitute \( x=a+h \) into the expression \( \frac{8 x-5}{5 x+4} \).
Evaluate the expression by following steps:
- step0: Evaluate:
\(\frac{8x-5}{5x+4}\)
- step1: Substitute:
\(\frac{8\left(a+h\right)-5}{5\left(a+h\right)+4}\)
- step2: Expand the expression:
\(\frac{8a+8h-5}{5\left(a+h\right)+4}\)
- step3: Expand the expression:
\(\frac{8a+8h-5}{5a+5h+4}\)
Substitute \( x=-a \) into the expression \( \frac{8 x-5}{5 x+4} \).
Evaluate the expression by following steps:
- step0: Evaluate:
\(\frac{8x-5}{5x+4}\)
- step1: Substitute:
\(\frac{8\left(-a\right)-5}{5\left(-a\right)+4}\)
- step2: Multiply the numbers:
\(\frac{-8a-5}{5\left(-a\right)+4}\)
- step3: Multiply the numbers:
\(\frac{-8a-5}{-5a+4}\)
- step4: Rewrite the fraction:
\(\frac{8a+5}{5a-4}\)
Substitute \( x=a \) into the expression \( \frac{8 x-5}{5 x+4} \).
Evaluate the expression by following steps:
- step0: Evaluate:
\(\frac{8x-5}{5x+4}\)
- step1: Substitute:
\(\frac{8a-5}{5a+4}\)
Let's evaluate the function \( f(x) = \frac{8x - 5}{5x + 4} \) for the specified values step by step.
1. **Finding \( f(-3) \)**:
\[
f(-3) = \frac{8(-3) - 5}{5(-3) + 4} = \frac{-24 - 5}{-15 + 4} = \frac{-29}{-11} = \frac{29}{11}
\]
2. **Finding \( f(2) \)**:
\[
f(2) = \frac{8(2) - 5}{5(2) + 4} = \frac{16 - 5}{10 + 4} = \frac{11}{14}
\]
3. **Finding \( f(-a) \)**:
\[
f(-a) = \frac{8(-a) - 5}{5(-a) + 4} = \frac{-8a - 5}{-5a + 4} = \frac{-8a - 5}{-5a + 4}
\]
4. **Finding \( -f(a) \)**:
\[
f(a) = \frac{8a - 5}{5a + 4} \implies -f(a) = -\frac{8a - 5}{5a + 4} = \frac{-8a + 5}{5a + 4}
\]
5. **Finding \( f(a + h) \)**:
\[
f(a + h) = \frac{8(a + h) - 5}{5(a + h) + 4} = \frac{8a + 8h - 5}{5a + 5h + 4}
\]
Now, we can summarize the results:
\[
\begin{array}{l}
f(-3) = \frac{29}{11} \\
f(2) = \frac{11}{14} \\
f(-a) = \frac{-8a - 5}{-5a + 4} \\
-f(a) = \frac{-8a + 5}{5a + 4} \\
f(a + h) = \frac{8a + 8h - 5}{5a + 5h + 4}
\end{array}
\]
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