Let f : R → R³ be defined by f(x) = (-9x, –2x, –5x). Is ƒ a linear transformation? a. f(x + y) = f(x) + f(y) Does f(x + y) = f(x) + f(y) for all æ, y E R? b. f(cæ) = c(f(x)) = Does f(cx) = c(f(x)) for all c, æ E R? c. Is fa linear transformation? +

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.4: Linear Transformations
Problem 12EQ
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Let f : R → R³ be defined by f(x) = (-9x, –2x, –5x). Is ƒ a linear transformation?
a. f(x + y) =
f(x)+ f(y) =
Does f(x + y) = f(x) + f(y) for all x, y E R?
b. f(cæ) =
c(f(x)) =
Does f(cæ) = c(f(x)) for all c, æ E R?
c. Is fa linear transformation?
Transcribed Image Text:Let f : R → R³ be defined by f(x) = (-9x, –2x, –5x). Is ƒ a linear transformation? a. f(x + y) = f(x)+ f(y) = Does f(x + y) = f(x) + f(y) for all x, y E R? b. f(cæ) = c(f(x)) = Does f(cæ) = c(f(x)) for all c, æ E R? c. Is fa linear transformation?
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