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Question 2 of 14, Step 1 of 1 Find the slope and \( y \)-intercept of the following linear equation. Express the \( y \)-intercept as a coordinate pair. \[ y=-\frac{3}{4} x \]

Ask by Ward Todd. in the United States
Feb 03,2025

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Answer

The slope is \( -\frac{3}{4} \) and the \( y \)-intercept is \( (0,\ 0) \).

Solution

To analyze the linear equation \( y = -\frac{3}{4}x \), we'll identify both the **slope** and the **\( y \)-intercept**. ### 1. **Slope (\( m \))** The equation is in the **slope-intercept form**, which is: \[ y = mx + b \] where: - \( m \) is the **slope**. - \( b \) is the **\( y \)-intercept**. Comparing \( y = -\frac{3}{4}x \) with the slope-intercept form: - The coefficient of \( x \) is \( -\frac{3}{4} \). **Therefore, the slope (\( m \)) is:** \[ m = -\frac{3}{4} \] ### 2. **\( y \)-Intercept (\( b \))** In the given equation \( y = -\frac{3}{4}x \), there's no constant term added or subtracted. This means: \[ b = 0 \] **Expressed as a coordinate pair, the \( y \)-intercept is:** \[ (0,\ 0) \] ### **Summary** - **Slope:** \( -\frac{3}{4} \) - **\( y \)-Intercept:** \( (0,\ 0) \)

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To find the slope and \( y \)-intercept of the equation \( y = -\frac{3}{4} x \), it helps to recognize that this equation is already in slope-intercept form \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept. Here, the slope \( m \) is -\(\frac{3}{4}\), indicating the line decreases as \( x \) increases. The y-intercept \( b \) is 0 (when \( x = 0 \)), meaning the coordinate pair for the y-intercept is (0, 0). By understanding the slope and intercept, you can create a quick sketch of the line! Just remember, every time \( x \) increases by 4, \( y \) will drop by 3, forming a neat downward slope. To visualize better, you can plot this line on a graph. Start at the y-intercept (0, 0) and use the slope to find another point: move right 4 units (to \( x = 4 \)) and then down 3 units (to \( y = -3 \)). Connect those dots, and voilà! You’ve got yourself a linear equation on the graph!

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