Math Problem Statement

The problem asks to analyze two linear functions, A and B, to determine their slopes and compare specific y-values at x = 6.

Solution

To address the task, let's analyze both functions and compare their properties:

Function A

Function A is given as a table of values:

xy
-9-6
-6-5
90

To find the slope of Function A, we can use the formula for the slope between two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2): m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

Using the points (9,6)(-9, -6) and (9,0)(9, 0): m=0(6)9(9)=618=13m = \frac{0 - (-6)}{9 - (-9)} = \frac{6}{18} = \frac{1}{3}

Function B

Function B is represented graphically. We need to pick two points from the line to calculate its slope. By inspection, using points (0,0)(0, 0) and (10,10)(10, 10): m=100100=1m = \frac{10 - 0}{10 - 0} = 1

Comparing the Statements

  • The slope of Function A is less than the slope of Function B.

    • True. The slope of A is 13\frac{1}{3} and B is 11.
  • The slope of Function A is equal to the slope of Function B.

    • False. As determined above.
  • The y-value of Function A when x=6x = 6 is equal to the y-value of Function B when x=6x = 6.

    • To find the y-value for Function A when x=6x = 6, use the slope-intercept form, noting the point (6,5)(-6, -5) for determining the intercept: y=13x+by = \frac{1}{3}x + b 5=13(6)+b    5=2+b    b=3-5 = \frac{1}{3}(-6) + b \implies -5 = -2 + b \implies b = -3 y=13x3y = \frac{1}{3}x - 3 y(6)=13(6)3=23=1y(6) = \frac{1}{3}(6) - 3 = 2 - 3 = -1 For Function B, since the slope is 11 and the y-intercept is 00: y(6)=1(6)=6y(6) = 1(6) = 6
      • False. Function A yields 1-1 and Function B yields 66 at x=6x = 6.
  • The y-value of Function A when x=6x = 6 is greater than the y-value of Function B when x=6x = 6.

    • False. As shown, 1-1 is not greater than 66.

Do you need more detailed calculations or have any other questions on this? Here are some related queries:

  1. How can we determine the y-intercept of Function B from its graph?
  2. What happens to the y-values of Function A as xx increases further?
  3. Can we write the equation of Function B using point-slope form?
  4. How would Function A's graph look if plotted?
  5. Are there any x-values where Functions A and B intersect?

Tip: When analyzing a linear function from a graph or table, always verify the slope and intercept by checking calculations with multiple points to ensure accuracy.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Linear Functions
Slope Calculation
Graph Analysis

Formulas

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

Theorems

Properties of Linear Functions
Slope-Intercept Form of a Line

Suitable Grade Level

Grades 8-10