Math Problem Statement
write down the range of f(x)=54x-13, -2<x<20
Solution
To find the range of the function over the domain :
Steps:
-
The function is a linear function, which means it is continuous and strictly increasing (since ) over its domain.
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Evaluate at the endpoints of the domain:
- Lower endpoint ():
- Upper endpoint ():
-
Since is strictly increasing, the range is:
This range excludes and because the domain excludes and . If the endpoints were included, the range would be .
Would you like more detailed explanations or further assistance?
Related Questions:
- What is the slope of the function and how does it affect the range?
- How would the range change if were a closed interval, ?
- What are the intercepts of ?
- How would you find the inverse of ?
- What does the steepness of the line tell us about its behavior over this interval?
Tip: For linear functions, always check the values at the endpoints of the domain to determine the range!
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Math Problem Analysis
Mathematical Concepts
Linear Functions
Domain and Range
Formulas
f(x) = mx + b
Theorems
Range of a Linear Function
Suitable Grade Level
Grades 9-11