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Trava [24]
3 years ago
13

F(x)=4x2−8x−60 f(x)=4(x2−2x−15) f(x)=4(x−5)(x+3) whts the true statement of f(x)

Mathematics
1 answer:
alukav5142 [94]3 years ago
4 0

Answer: D


Step-by-step explanation:

No such thing as a vertex of a graph... Eliminate B and C. Try f(3) = 4(3-5)(3+3) is not zero eliminate A. So answer must be D. Check: f(-3) has factor -3+3 = 0. f(5) has factor 5-5 = 0.

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Answer:

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Step-by-step explanation:

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Therefore,

Domain of the function = [-2, 0, 2, 4]

Range of the function = [3] (only 1 possible value of y can be seen as plotted on the gray]

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2 years ago
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Answer/Step-by-step explanation:

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5 0
2 years ago
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Lana71 [14]

Answer:

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Answer:

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Step-by-step explanation:

Two quantities P and Q are said to be in PROPORTION if and only if for all values of P and q, we get:

\frac{P}{Q}  = k

Here, k : PROPORTIONALITY CONSTANT

Case: 1

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So, the piano practice in 2 weeks( 1 x 2) =   2 x  5 = 10 hours

But here, it is given to be 12 hours in 2 weeks.

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Case 2:

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But here, it is given to be 280 words in 210 seconds.

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Case: 3

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Case: 4

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Hence, NOT PROPORTIONAL.

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Step-by-step explanation:

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