Math Problem Statement

Complete the table and graph the linear equation y = (1/3)x + 2 for x values of 0 and 3.

Solution

To complete this table, let's evaluate the equation y=13x+2y = \frac{1}{3}x + 2 for x=0x = 0 and x=3x = 3.

  1. When x=0x = 0: y=13(0)+2=0+2=2y = \frac{1}{3}(0) + 2 = 0 + 2 = 2 So, when x=0x = 0, y=2y = 2.

  2. When x=3x = 3: y=13(3)+2=1+2=3y = \frac{1}{3}(3) + 2 = 1 + 2 = 3 So, when x=3x = 3, y=3y = 3.

Completed Table

xxyy
02
33

Ordered Pairs

The ordered pairs to plot are:

  • (0,2)(0, 2)
  • (3,3)(3, 3)

Graphing the Linear Equation

To graph, plot these points on the grid:

  • Point (0,2)(0, 2) is on the y-axis at 2.
  • Point (3,3)(3, 3) is to the right of the origin, up at 3.

Connect these points to form a straight line representing the equation y=13x+2y = \frac{1}{3}x + 2.

Would you like more details, or have any questions?

Here are five additional questions for exploration:

  1. How would the line change if the slope were different?
  2. What would the y-intercept be if it shifted up by 1 unit?
  3. How do you find the slope from two points on a graph?
  4. Can you explain how to graph lines with negative slopes?
  5. What if the equation was y=13x+2y = -\frac{1}{3}x + 2; how would the graph look?

Tip: When graphing linear equations, always start by plotting the y-intercept, then use the slope to determine the direction and spacing of the line.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Coordinate Geometry

Formulas

y = mx + b

Theorems

Slope-Intercept Form of a Linear Equation

Suitable Grade Level

Grades 6-8