2 years ago

Evaluate the function for for f(2). f(x)=x2−5x+7

Mathematics

1 answer:

arsen [322]2 years ago

7 0

Here is the answer for your question f2= 7x+7

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Svetlanka [38]

They are linear pairs

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2 years ago

-3/7 + -3/4 by today Plus points

Roman55 [17]

Answer:

-33/28

Step-by-step explanation:

-12/28 + -21/28

= -33/28

you can't simplify it so its -33/28

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2 years ago

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Which type of line is shown below

sergejj [24]

Type of lines ? Not the best question.

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klio [65]

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Step-by-step explanation:

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1 year ago

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At what values of x does f(x) = x^3 - 2x^2 -4x+1 satisfy the mean value theorwm on [0,1]

denis-greek [22]

Answer:

x=1/3

Step-by-step explanation:

A function f is given as

$f(x) = x^3-2x^2-4x+1$ in the interval [0,1]

This function f being an algebraic polynomial is continuous in the interval [0,1] and also f is differntiable in the open interval (0,1)

Hence mean value theorem applies for f in the given interval

$f(1) = 1-2-4+1 = -4\\f(0) = 1$

The value

$\frac{f(1)-f(0)}{1-0} =\frac{-4-1}{1} =-5$

Find derivative for f

$f'(x) = 3x^2-4x-4$

Equate this to -5 to check mean value theorem

$3x^2-4x-4=-5\\3x^2-4x+1=0\\\\(x-1)(3x-1) =0\\x= 1/3 : x = 1$

We find that 1/3 lies inside the interval (0,1)

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2 years ago