Math Problem Statement

Drag the points to create graphs of linear relationships that have different y-intercepts and slopes of 1/5, 3/5, and 6/5.

Solution

In this problem, you are asked to create graphs of linear relationships with different y-intercepts and specific slopes of 15\frac{1}{5}, 35\frac{3}{5}, and 65\frac{6}{5}.

To do this, the general equation of a line, which is y=mx+by = mx + b, can be used. Here:

  • mm represents the slope,
  • bb represents the y-intercept.

Steps to Graph Each Line:

  1. First Line with slope 15\frac{1}{5}:

    • Choose one of the y-intercepts (points on the y-axis). For example, pick the red point at (0,12)(0, 12).
    • Use the slope 15\frac{1}{5}, which means for every 5 units you move to the right (on the x-axis), move 1 unit up (on the y-axis).
    • Plot the next point by moving right 5 units and up 1 unit.
  2. Second Line with slope 35\frac{3}{5}:

    • Pick a different y-intercept (e.g., the gray point at (0,8)(0, 8)).
    • Use the slope 35\frac{3}{5}, which means for every 5 units you move to the right, move 3 units up.
    • Plot the next point accordingly.
  3. Third Line with slope 65\frac{6}{5}:

    • Select the third y-intercept (e.g., the purple point at (0,4)(0, 4)).
    • Use the slope 65\frac{6}{5}, meaning for every 5 units to the right, move 6 units up.

By following these steps, you'll be able to create three different lines, each with a unique slope and starting point on the y-axis.

Do you need further explanation on graphing these lines, or any clarification on the concepts?

Here are 5 follow-up questions to explore this further:

  1. What happens when you change the slope of a line to a negative value?
  2. Can you explain how to determine the slope if you're given two points on a line?
  3. How would the graph look if the slope was an integer instead of a fraction?
  4. How does changing the y-intercept affect the position of the line?
  5. How can you verify if two lines are parallel just by looking at their equations?

Tip: Always check that the slope matches the rise-over-run when plotting points on a graph.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slope-Intercept Form

Formulas

y = mx + b

Theorems

Slope-Intercept Theorem

Suitable Grade Level

Grades 6-8