
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Hello,
Can you review my answer for this problem.
I’m not sure of my work especially A and D
Thank you

Transcribed Image Text:**Part Three**
Find the inverse of each function below. Check your answers in Desmos.
a. \( f(x) = 2x^2 - 4 \)
- \( y = 2x^2 - 4 \)
- \( x = 2y^2 - 4 \)
- \( x + 4 = 2y^2 \)
- \( \frac{x + 4}{2} = y^2 \)
- Solving for \( y \): \( y = \sqrt{\frac{x + 4}{2}} \)
b. \( f(x) = \frac{3}{x} + 2 \)
- \( y = \frac{3}{x} + 2 \)
- \( y - 2 = \frac{3}{x} \)
- \( \frac{3}{y - 2} = x \)
c. \( f(x) = \frac{2x - 9}{x + 2} \)
- \( y = \frac{2x - 9}{x + 2} \)
- Cross-multiply: \( x(y + 2) = 2y - 9 \)
- \( xy + 2x = 2y - 9 \)
- Rearrange terms: \( x(y + 2) = 2y + 9 \)
- Solve for \( x \): \( x = \frac{2y + 9}{y + 2} \)
d. \( f(x) = a(x - h)^2 + k \)
- \( y = a(x - h)^2 + k \)
- Solve: \( y - k = a(x - h)^2 \)
- \( \frac{y - k}{a} = (x - h)^2 \)
- \( \sqrt{\frac{y - k}{a}} + h = x \)
- So the inverse: \( f^{-1}(x) = \sqrt{\frac{x - k}{a}} + h \)
**Part Four**
Graph \( y = \log_3 x \) and \( y = 3^x \) on the same axis using a table. You may want to use two colors to separate the graphs.
a) Table and Graph:
- For \( y = \log_3 x \)
- \( f(1) = \log_
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