Math Problem Statement

What is the answer

What is the answer

Solution

To determine the piecewise function f(x)f(x) based on the graph, I will analyze the two line segments and their corresponding domains. Each line segment represents a portion of the function.

1. Left Line Segment (From x=5x = -5 to x=1x = 1):

  • Endpoints: The line starts at (5,6)(-5, 6) and ends at (1,2)(1, -2).
  • Slope Calculation: slope=y2y1x2x1=261(5)=86=43\text{slope} = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-2 - 6}{1 - (-5)} = \frac{-8}{6} = -\frac{4}{3}
  • Equation of the Line: Use the point-slope form yy1=m(xx1)y - y_1 = m(x - x_1) with m=43m = -\frac{4}{3} and point (5,6)(-5, 6): y6=43(x+5)y - 6 = -\frac{4}{3}(x + 5) Simplifying this: y6=43x203y - 6 = -\frac{4}{3}x - \frac{20}{3} y=43x+20+183=43x23y = -\frac{4}{3}x + \frac{-20 + 18}{3} = -\frac{4}{3}x - \frac{2}{3} Thus, for 5x1-5 \leq x \leq 1, the equation is: f(x)=43x23f(x) = -\frac{4}{3}x - \frac{2}{3}

2. Right Line Segment (From x=1x = 1 to x=5x = 5):

  • Endpoints: The line starts at (1,2)(1, -2) and ends at (5,4)(5, 4).
  • Slope Calculation: slope=4(2)51=64=32\text{slope} = \frac{4 - (-2)}{5 - 1} = \frac{6}{4} = \frac{3}{2}
  • Equation of the Line: Use the point-slope form yy1=m(xx1)y - y_1 = m(x - x_1) with m=32m = \frac{3}{2} and point (1,2)(1, -2): y+2=32(x1)y + 2 = \frac{3}{2}(x - 1) Simplifying this: y+2=32x32y + 2 = \frac{3}{2}x - \frac{3}{2} y=32x322=32x72y = \frac{3}{2}x - \frac{3}{2} - 2 = \frac{3}{2}x - \frac{7}{2} Thus, for 1<x51 < x \leq 5, the equation is: f(x)=32x72f(x) = \frac{3}{2}x - \frac{7}{2}

Final Piecewise Function:

The function f(x)f(x) is given by:

-\frac{4}{3}x - \frac{2}{3} & \text{for } -5 \leq x \leq 1 \\ \frac{3}{2}x - \frac{7}{2} & \text{for } 1 < x \leq 5 \end{cases}$$ Would you like more details or have any questions? Here are 5 related questions: 1. How do you determine the slope between two points? 2. What is the point-slope form of a linear equation? 3. How would the function change if the slope of one of the segments were different? 4. What is the significance of open and closed circles in piecewise functions? 5. How can you graph a piecewise function from its algebraic definition? **Tip:** When writing piecewise functions, always ensure the domain matches the behavior in the graph.

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Math Problem Analysis

Mathematical Concepts

Piecewise Functions
Linear Equations
Slope Calculation

Formulas

Slope formula: (y2 - y1) / (x2 - x1)
Point-slope form: y - y1 = m(x - x1)

Theorems

Slope-intercept form

Suitable Grade Level

Grades 9-11