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Dmitry_Shevchenko [17]
3 years ago
11

The curve with equation y = f ( x ) is stretched so that the point (-3,-5) moves to the point (-3,-10). State in terms of f ( x

) the transformed function.
Mathematics
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

The transformed function is g(x) = 2\cdot f(x), \forall\,x \in \mathbb{R}.

Step-by-step explanation:

Let be f(x) and g(x) continuous functions in x. In this case, the stretch factor consist on multiplying f(x) by a scalar factor, so that:

g(x) = k \cdot f(x), \forall\, k\in \mathbb{R}, k \neq 0

The stretch factor is:

k = \frac{g(x)}{f(x)}, \forall\, x \in \mathbb{R}

If f(-3) = -5 and g(-3) = -10, then:

k = \frac{g(-3)}{f(-3)}

k = \frac{-10}{-5}

k = 2

The transformed function is g(x) = 2\cdot f(x), \forall\,x \in \mathbb{R}.

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Elena invested $ 1,700 at 5%, $ 700 at 4%, and $ 600 at 3%.

Step-by-step explanation:

Given that Elena receives $ 131 per year in simple interest from three investments totaling $ 3000, and part is invested at 3%, part at 4% and part at 5%, and there is $ 1000 more invested at 5% than at 4%, to find the amount invested at each rate, the following calculations must be performed:

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