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8 November, 19:24

What is the domain and range of f (x) = 2.5x when x goes up to 800

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  1. 8 November, 19:31
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    Domain: all real numbers. Range: (-∞, 2000]

    Step-by-step explanation:

    f (x) = 2.5x is a simple "ramp" function, a linear function and a polynomial. As such, its domain contains "all real numbers." That value 800 defines the largest value that this f (x) can have: f (800) = 2.5 (800) = 2000.

    Thus, the range is "all real numbers from - ∞ through and including 2000."
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