Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN: 9781337614085
Author: Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher: Cengage,
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Question 24

### Question: 
What is the slope of a line perpendicular to \( y = \frac{3}{4}x + 5 \)?

### Answer Choices:
A. \(-\frac{3}{4}\)<br>
B. \(\frac{1}{5}\)<br>
C. \(\frac{4}{3}\)<br>
D. \(-\frac{4}{3}\)

### Explanation:
In this problem, we are required to find the slope of a line that is perpendicular to the given line equation \( y = \frac{3}{4}x + 5 \). 

To solve this, recall that the slope of a perpendicular line is the negative reciprocal of the slope of the given line. The slope-intercept form of a line is written as \( y = mx + b \), where \( m \) represents the slope.

Here, the slope \( m \) of the given line is \( \frac{3}{4} \). 

To find the slope of the perpendicular line, we take the negative reciprocal of \( \frac{3}{4} \):
\[ \text{Negative Reciprocal} = -\left( \frac{4}{3} \right) = -\frac{4}{3} \]

Therefore, the correct answer is:

### Answer:
D. \(-\frac{4}{3}\)
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Transcribed Image Text:### Question: What is the slope of a line perpendicular to \( y = \frac{3}{4}x + 5 \)? ### Answer Choices: A. \(-\frac{3}{4}\)<br> B. \(\frac{1}{5}\)<br> C. \(\frac{4}{3}\)<br> D. \(-\frac{4}{3}\) ### Explanation: In this problem, we are required to find the slope of a line that is perpendicular to the given line equation \( y = \frac{3}{4}x + 5 \). To solve this, recall that the slope of a perpendicular line is the negative reciprocal of the slope of the given line. The slope-intercept form of a line is written as \( y = mx + b \), where \( m \) represents the slope. Here, the slope \( m \) of the given line is \( \frac{3}{4} \). To find the slope of the perpendicular line, we take the negative reciprocal of \( \frac{3}{4} \): \[ \text{Negative Reciprocal} = -\left( \frac{4}{3} \right) = -\frac{4}{3} \] Therefore, the correct answer is: ### Answer: D. \(-\frac{4}{3}\)
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