Math Problem Statement

Match each linear table to an equation that can be used to model it.

Solution

To solve this matching problem, we need to identify the correct equation for each table of values. Let's break down the process:

  1. First Table:

    • x=0,1,2,3x = 0, 1, 2, 3
    • y=4,1,2,5y = -4, -1, 2, 5

    This set shows that when xx increases by 1, yy increases by 3. This suggests a slope of 3, and the equation is likely of the form y=3x+by = 3x + b. Let's check:

    • y=3(0)4=4y = 3(0) - 4 = -4 So the equation matches y=3x4y = 3x - 4.
  2. Second Table:

    • x=2,0,2,4x = -2, 0, 2, 4
    • y=10,4,2,8y = 10, 4, -2, -8

    The change in yy when xx increases by 2 is consistently 6-6, indicating a slope of 3-3. The equation is y=3x+4y = -3x + 4. Checking values confirms this.

  3. Third Table:

    • x=3,6,9,12x = 3, 6, 9, 12
    • y=3,2,1,0y = 3, 2, 1, 0

    As xx increases, yy decreases by 1 for every increase of 3 in xx, indicating a slope of 13-\frac{1}{3}. The equation is likely y=13x+4y = -\frac{1}{3}x + 4.

  4. Fourth Table:

    • x=12,6,6,12x = -12, -6, 6, 12
    • y=8,6,2,0y = -8, -6, -2, 0

    The values suggest a positive slope of 13\frac{1}{3}. The equation is y=13x4y = \frac{1}{3}x - 4.

Now, matching the tables to the equations:

  • First table (top): y=3x4y = 3x - 4
  • Second table: y=3x+4y = -3x + 4
  • Third table: y=13x+4y = -\frac{1}{3}x + 4
  • Fourth table (bottom): y=13x4y = \frac{1}{3}x - 4

Do you want more details on how these equations are derived, or have any questions?

Here are 5 related questions to expand your understanding:

  1. What is the process for calculating the slope between two points?
  2. How do you determine the y-intercept from a table of values?
  3. What are the differences between positive and negative slopes in graphs?
  4. Can a linear equation have a fractional slope, and what does that represent?
  5. How do you check if a point lies on a given line?

Tip: Always check the consistency of the slope across all points in the table when determining linear relationships!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form
Algebra

Formulas

Slope formula: (y2 - y1) / (x2 - x1)
Equation of a line: y = mx + b

Theorems

Linear Equation Theorem

Suitable Grade Level

Grades 8-10