Math Problem Statement

Graph the linear function f(x) = 1/4x + 7 using the graphing tool.

Solution

The problem asks to graph the linear function f(x)=14x+7f(x) = \frac{1}{4}x + 7. Let me guide you on how to graph this step by step:

Steps to Graph f(x)=14x+7f(x) = \frac{1}{4}x + 7:

  1. Identify the slope (mm) and y-intercept (bb):

    • The equation is in slope-intercept form y=mx+by = mx + b, where:
      • m=14m = \frac{1}{4} (slope)
      • b=7b = 7 (y-intercept).
  2. Plot the y-intercept:

    • The y-intercept is where x=0x = 0. Plot the point (0,7)(0, 7) on the graph.
  3. Use the slope to find another point:

    • Slope m=14m = \frac{1}{4} means that for every increase of 4 units in xx, yy increases by 1 unit.
    • Starting from (0,7)(0, 7), move 4 units to the right and 1 unit up to get the second point (4,8)(4, 8).
  4. Draw the line:

    • Use a ruler to draw a straight line through the points (0,7)(0, 7) and (4,8)(4, 8). Extend it in both directions.

Would you like me to generate a visual graph of this function? Let me know if you need more details!


Here are 5 questions to further understand the concept:

  1. How does the slope 14\frac{1}{4} influence the steepness of the line?
  2. What happens to the graph if the y-intercept changes from 7 to another number?
  3. How would you graph this equation if the slope was negative?
  4. Why is it important to plot at least two points when drawing a line?
  5. What real-life situations can be modeled using linear equations like this one?

Tip: Always double-check your plotted points to ensure they align with the slope!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Graphing
Slope-Intercept Form

Formulas

y = mx + b

Theorems

Slope-Intercept Form Theorem

Suitable Grade Level

Grades 7-10