Use the image to answer the question.

Three lines, a solid line, a dotted line, and a dashed line, are drawn on a coordinate plane. The -axis ranges from negative 3 to 3 in 1-unit increment, and the y-axis ranges from 0 to 5 in 1-unit increments.

Which option represents the piecewise function of the graph?

Option #1: f(x)=⎧⎩⎨⎪⎪2x,2,−2x, −2<x<−1−1≤x≤11<x<2

Option #2: f(x)=⎧⎩⎨⎪⎪−2x,2,2x, 2<x<4x=2 2<x<4

Option #3: f(x)=⎧⎩⎨⎪⎪−2x,2,2x, −2<x<−1−1≤x≤11<x<2

(1 point)
Option #
is the correct equation for the piecewise graph.

1 answer

To determine which option represents the piecewise function of the graph based on the description you provided, we need to analyze the provided options and their respective intervals.

Option #1: \[ f(x)= \begin{cases} 2x & \text{if } -2 < x < -1 \ 2 & \text{if } -1 \leq x \leq 1 \ -2x & \text{if } 1 < x < 2 \end{cases} \]

Option #2: \[ f(x)= \begin{cases} -2x & \text{if } 2 < x < 4 \ 2 & \text{if } x = 2 \ 2x & \text{if } 2 < x < 4 \end{cases} \]

Option #3: \[ f(x)= \begin{cases} -2x & \text{if } -2 < x < -1 \ 2 & \text{if } -1 \leq x \leq 1 \ 2x & \text{if } 1 < x < 2 \end{cases} \]

Comparing these options, we can see that:

  • Option #1 has a constant value of 2 from \(-1\) to \(1\), which might not match a typical graph whose continuous behavior is broken at those points unless specified.
  • Option #2 seems to define the function for intervals starting from \(2\) and extending to \(4\), which doesn’t align with the \(x\) ranges provided in the question.
  • Option #3 shows behaviors on ranges from \(-2 < x < -1\), at \(-1 \leq x \leq 1\), and \(1 < x < 2\) with a mix of linear functions.

Without actually seeing the graph, Option #3 seems most coherent with a typical piecewise function of three segments across three parts of the horizontal range.

Thus, based on the provided descriptions and the analysis, Option #3 is the correct choice:

Option #3 is the correct equation for the piecewise graph.