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The range of f(x) = |x| is y > 0.
If a < 0 for g(x) = a|x|, what is the range of the function of g?

A. Y < a
B. Y < 0
C. Y > 0

Sagot :

reinhard10158

Step-by-step explanation:

first of all I have to say the range should be " y >= 0" and not just "y > 0", because x can be 0, and then y is 0 too.

but under the the same assumption of the definition above, the correct answer is B, y < 0.

because a×|x| means we multiply a negative value with a positive value. and that result is always a negative value.

so, it cannot be C.

and it cannot be A, because

if |x| < 1 (e.g. 0.5), then a×|x| > a, as e.g. -1 > -2

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