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

Mathematics

1 answer:

Mandarinka [93]3 years ago

3 0

Answer:

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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What is the value of the expression 5x2 + 2x when x = 5?

masha68 [24]

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Step-by-step explanation:

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