Question: (1 point) Let f : R -> R* be defined by f(x) = (-3x, 4x, -72). Is f a linear transformation? a. f(x + y)

(1 point) Let f : R -> R* be defined by f(x) = (-3x, 4x, -72). Is f a linear transformation? a. f(x + y) = f(x) + f(y) = (-3x-4x-7x) + (-3y-4y-7y) Does f(x + y) = f(x) + f(y) for all i, y E RR? Yes, they are equal v b. f (cx) = c(f(x)) = Does f(cx) = c(f(x)) for all c, r E R? choose c. Is f a linear transformation? choose

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