Scaling functions horizontally: examples | Transformations of functions | Algebra 2 | Khan Academy
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https://www.khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:transformations/x2ec2f6f830c9fb89:scale/v/compressing-functions-example
The function f(k⋅x) is a horizontal scaling of f. See multiple examples of how we relate the two functions and their graphs, and determine the value of k.
View more lessons or practice this subject at https://www.khanacademy.org/v/scaling-functions-horizontally
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