Let f : R → R be defined by f(x) = -9x². Is f 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? choose b. f(cx) = c(f(x)) = Does f(cx) = c(f(x)) for all c, x E R? choose c. Is f a linear transformation? choose

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.5: The Kernel And Range Of A Linear Transformation
Problem 4EQ
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Let f : R → R be defined by f(x) = -9x². Is f 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? choose
b. f(cx) =
c(f(x)) =
Does f(cx) = c(f(x)) for all c, x E R? choose
c. Is f a linear transformation? choose
Transcribed Image Text:Let f : R → R be defined by f(x) = -9x². Is f 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? choose b. f(cx) = c(f(x)) = Does f(cx) = c(f(x)) for all c, x E R? choose c. Is f a linear transformation? choose
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