Math Problem Statement

Find the equation of the linear function represented by the table below in slope-intercept form: x | y ---|--- 1 | 0 2 | 5 3 | 10 4 | 15

Solution

To find the equation of the linear function represented by the table in slope-intercept form (y=mx+by = mx + b):

Step 1: Calculate the slope (mm)

The slope (mm) is given by the formula: m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1} Using the first two points, (1,0)(1, 0) and (2,5)(2, 5): m=5021=51=5m = \frac{5 - 0}{2 - 1} = \frac{5}{1} = 5

Step 2: Use a point to find the yy-intercept (bb)

Substitute m=5m = 5 and one point (e.g., (1,0)(1, 0)) into the slope-intercept equation (y=mx+by = mx + b): 0=5(1)+b0 = 5(1) + b b=05=0b = 0 - 5 = 0

Step 3: Write the equation

The equation of the line is: y=5xy = 5x

If you have any questions or need further clarification, let me know!


Related Questions:

  1. How do you determine if a table represents a linear function?
  2. What changes if the yy-intercept (bb) is not zero?
  3. How can you verify the equation using other points in the table?
  4. What is the difference between slope-intercept form and standard form of a line?
  5. How do you calculate the slope when the points are negative or fractions?

Tip:

Always double-check your slope calculation using at least two different sets of points from the table!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Slope-intercept form: y = mx + b

Theorems

Linear Equation Properties

Suitable Grade Level

Grades 8-10