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stiv31 [10]
3 years ago
15

Place each of the key aspects under the function it describes

Mathematics
2 answers:
melamori03 [73]3 years ago
5 0

Answer:

range: {y: y ≥ 0} ⇒ h(x)

decreasing over(-∞ , 1) ⇒ h(x)

increasing over (-∞ , 0) ⇒ g(x)

range: {y: y ≤ 1} ⇒ g(x)

increasing over (1 , ∞) ⇒ h(x)

decreasing over(0 , ∞) ⇒ g(x)

Step-by-step explanation:

∵ h(x) = (x - 1)²

∴ Its vertex is (1 , 0)

∴ The parabola is opened upward

∴ The range: {y: y ≥ 0}

∴ It's decreasing over (-∞ , 1)

∴ It's increasing over (1 , ∞)

∵ g(x) = -(x - 1)(x + 1) = -(x² - 1) = -x² + 1

∴ Its vertex is (0 , 1)

∴ The parabola is opened downward

∴ The range: {y: y ≤ 1}

∴ It's increasing over (-∞ , 0)

∴ It's decreasing over (0 , ∞)

RideAnS [48]3 years ago
5 0
<h2>Answer with explanation:</h2>

First function h(x) is given by:

h(x)=(x-1)^2

The function is a quadratic function

and also we know that:

(x-1)^2\geq 0

Hence, the range is: {y | y≥0}

Also, we know that the graph of the function decreases continuously in the interval (-∞,1) and then it increases continuously in the interval (1,∞)

and the vertex is at (1,0)

Second function is:

       g(x)=-(x+1)(x-1)

which could also be written by:

g(x)=-(x^2-1)

since we know that:

(a+b)(a-b)=a^2-b^2

Also,we know that:

x^2\geq 0\\\\x^2-1\geq -1\\\\-(x^2-1)\leq 1

i.e.

g(x)\leq 1

Hence, we get the range of this function is:  {y | y≤1}

The graph of this function is a downward open parabola with vertex at (0,1) and hence, the graph is increasing in the interval (-∞,0) and decreasing over the interval (0,∞).

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