The water level of a river is 39 feet. The linear function h(x) = –3x + 39 models the height of the river, h(x), in feet, after a given number of days, x. What is the range of the function?  [39, ∞)  (–∞, 39]  (–∞, ∞)  [0, 39]

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.1: Inverse Functions
Problem 3E
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The water level of a river is 39 feet. The linear function h(x) = –3x + 39 models the height of the river, h(x), in feet, after a given number of days, x. What is the range of the function?

 [39, ∞)

 (–∞, 39] 

(–∞, ∞) 

[0, 39]

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