Question
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? Exercise 2.2.1
Consider that the slope in Example 2 could also be written as . Using and starting at the
vertical intercept, find another point on the graph that has a negative value.

Ask by Love Smith. in the United States
Jan 26,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

Another point with a negative -value is , where is the y-coordinate of the vertical intercept.

Solution

To solve this problem, we’ll use the information provided about the slope and the vertical intercept.

Given:

  • Slope: (which is equivalent to )
  • Vertical Intercept: Let’s assume it’s at (where is the y-coordinate of the intercept).

Steps to Find Another Point with Negative -Value:

  1. Understand the Slope:
    • The slope indicates that for every 3 units you move horizontally to the left (since the run is negative), the vertical position increases by 2 units.
  2. Starting at the Vertical Intercept:
    • Start at .
  3. Apply the Slope to Find the Next Point:
    • Horizontal Movement ( ): Move -3 units (to the left).
    • Vertical Movement ( ): Move +2 units (upwards).
  4. Calculate the Coordinates of the Next Point:
    • New -coordinate:
    • New -coordinate:
  5. Resulting Point:

Example with a Specific Vertical Intercept:

If, for instance, the vertical intercept is , then:
  • The next point would be .

Final Answer:

Assuming the vertical intercept is (as an example), another point with a negative -value is:
However, without the specific value of the vertical intercept from Example 2, the general form of the answer is:
Where is the y-coordinate of the vertical intercept.

Answered by UpStudy AI and reviewed by a Professional Tutor

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Bonus Knowledge

Starting at the vertical intercept, which is typically the point where is the y-intercept, you can use the slope of to find the next point. The slope tells us that for every 2 units you move up (in the y-direction), you’ll move 3 units left (in the x-direction).
From the vertical intercept , moving up 2 units takes you to . From there, moving left 3 units results in the point . So, a point on the graph with a negative x-value is .
Choose a specific y-intercept value (for example, if ): then the point would be .

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