Math Problem Statement

Graph the equation y = (1/4)x + 5 with the domain D: [-8, -4, 0, 4].

Solution

The image shows a math problem asking to graph the equation y=14x+5y = \frac{1}{4}x + 5, with a domain of D:[8,4,0,4]D: [-8, -4, 0, 4].

Let's break this down:

  1. Equation of the line: y=14x+5y = \frac{1}{4}x + 5 is a linear equation with a slope of 14\frac{1}{4} and a y-intercept of 5. This means the line rises by 1 unit for every 4 units it moves to the right.

  2. Given domain: D:[8,4,0,4]D: [-8, -4, 0, 4] means you are asked to graph the line for the x-values: 8,4,0,4-8, -4, 0, 4.

  3. To find the points on the graph:

    • When x=8x = -8: y=14(8)+5=2+5=3y = \frac{1}{4}(-8) + 5 = -2 + 5 = 3
    • When x=4x = -4: y=14(4)+5=1+5=4y = \frac{1}{4}(-4) + 5 = -1 + 5 = 4
    • When x=0x = 0: y=14(0)+5=5y = \frac{1}{4}(0) + 5 = 5
    • When x=4x = 4: y=14(4)+5=1+5=6y = \frac{1}{4}(4) + 5 = 1 + 5 = 6
  4. Plotting points:

    • (8,3)(-8, 3)
    • (4,4)(-4, 4)
    • (0,5)(0, 5)
    • (4,6)(4, 6)
  5. Graph: Now, these points would form a line when plotted on the grid.

Would you like me to explain the graphing process further or have any questions?


Here are 5 related questions to deepen your understanding:

  1. What is the slope of a line and how does it affect the graph's steepness?
  2. How do you calculate the y-intercept from an equation in slope-intercept form?
  3. If the slope were steeper, how would that change the graph of the line?
  4. What does the domain represent in the context of graphing a function?
  5. How can you check if a point lies on a given line?

Tip: Always start by identifying the slope and y-intercept from the equation when graphing linear equations.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Graphing

Formulas

y = mx + b (slope-intercept form)
Slope = rise/run

Theorems

Slope-Intercept Theorem

Suitable Grade Level

Grades 8-10