F(x)=x−4/2-3x Find the range of the function and state the condition in a set notation form

Computer Science

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Answer

{y∣y∈R}\{y \mid y \in \mathbb{R}\}

Graph of F(x) = x − 4/2 − 3x

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Key points of F(x) = x − 4/2 − 3x
Pointxy
x-intercept−10
y-intercept0−2

Step-by-step solution

4 steps
  1. Simplify the given function.

    The function is given as F(x)=x−4/2−3xF(x)=x-4/2-3x. According to the order of operations, division is performed before subtraction.

    F(x)=x−42−3xF(x) = x - \frac{4}{2} - 3x F(x)=x−2−3xF(x) = x - 2 - 3x

    Combine the terms involving xx:

    F(x)=(1−3)x−2F(x) = (1-3)x - 2 F(x)=−2x−2F(x) = -2x - 2
  2. Determine the type of function.

    The simplified function F(x)=−2x−2F(x) = -2x - 2 is a linear function of the form y=mx+cy = mx + c, where m=−2m = -2 (the slope) and c=−2c = -2 (the y-intercept).

  3. Find the range of the function.

    For any linear function y=mx+cy = mx + c where the slope m≠0m \neq 0, the function can take any real value. In this case, m=−2m = -2, which is not zero. Therefore, as xx varies over all real numbers, F(x)F(x) will also vary over all real numbers.

  4. State the range in set notation.

    The range of the function is all real numbers.

    Range={y∣y∈R}\text{Range} = \{y \mid y \in \mathbb{R}\}

    The final answer is {y∣y∈R}\{y \mid y \in \mathbb{R}\}.

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