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jarptica [38.1K]
1 year ago
13

1. Given: f(x)=x²-5x +1 A) Which is larger f(2) or f(-2)? B) Which is smaller f(0) or f(4)?

Mathematics
1 answer:
Nady [450]1 year ago
5 0

A. The function f(-2) is larger than f(2)

B. The function f(4) is smaller than f(0)

Given,

The function;  f(x) = x²- 5x + 1

We have to find;

A. The larger is f(2) or f(-2)

Here,

f(2) = 2²- 5 x 2 + 1 = 4 - 10 + 1 = - 6 + 1 = -5

f(-2) = -2²- 5 x -2 + 1 = 4 + 10 + 1 = 15

That is,

The function f(-2) is larger than f(2)

B. The smaller is  f(0) or f(4)

Here,

f(0) =  0²- 5 x 0 + 1 = 0 - 0 + 1 = 1

f(4) = 4²- 5 x 4 + 1 = 16 - 20 + 1 = - 4 + 1 = -3

That is,

The function f(4) is smaller than f(0)

Learn more about functions here;

brainly.com/question/28441347

#SPJ1

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Answer:

Price of  hamburgers = $2

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Step-by-step explanation:

Let

The number price of hamburgers be x

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Then the first family buys 3 hamburgers and 2 white -dogs for $13

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To solve let us multiply eq(1) by 2 and eq(2) by 3, we get

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subracting (3) from (4)

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(-)

-------------------------

        11y  = 22

---------------------------

y =\frac{22}{11}

y =2

Now substituting the value of y in eq(1),

3x + 2(2) = 13

3x + 4 = 13

3x = 13-4

3x = 9

x =\frac{9}{3}

x =3

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Answer:

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Step-by-step explanation:

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