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SVEN [57.7K]
3 years ago
12

For the function f(x) = 6x+1 , evaluate and simplify the difference quotient

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0

For a given function f(x), we define the difference quotient as:

\frac{f(x + h) - f(x)}{h}

We will get that the difference quotient is equal to 6.

Here we have the function:

f(x) = 6*x + 1

The difference quotient will be:

\frac{f(x + h) - f(x)}{h} = \frac{6*(x + h) + 1 - (6*x + 1)}{h}

Now let's simplify it:

\frac{6*(x + h) + 1 - (6*x + 1)}{h}  =  \frac{6*x + 6*h + 1 - 6*x - 1}{h}  = \frac{6*h}{h} = 6

Now, we also are asked to evaluate it, but as you can see, the <u>difference quotient is constant</u>, thus we can't actually <u>evaluate it, as it will always be equal to 6.</u>

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If you want to learn more, you can read:

<u>brainly.com/question/18270597</u>

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denis-greek [22]

Answer:

Square

Step-by-step explanation:

Plot the vertices of the quadrilateral PQRS on the coordinate plane (see attached diagram). The diagram shows that this is a square. Let's prove it.

1. Find all sides lengths:

PQ=\sqrt{(-3-0)^2+(0-4)^2}=\sqrt{(-3)^2+(-4)^2}=\sqrt{9+16}=\sqrt{25}=5\\ \\QR=\sqrt{(0-4)^2+(4-1)^2}=\sqrt{(-4)^2+(3)^2}=\sqrt{16+9}=\sqrt{25}=5\\ \\RS=\sqrt{(4-1)^2+(1-(-3))^2}=\sqrt{(3)^2+(4)^2}=\sqrt{9+16}=\sqrt{25}=5\\ \\SP=\sqrt{(1-(-3))^2+(-3-0)^2}=\sqrt{(4)^2+(-3)^2}=\sqrt{16+9}=\sqrt{25}=5

All sides have the same lengths.

2. Find the slopes of all lines:

PQ:\ \dfrac{4-0}{0-(-3)}=\dfrac{4}{3}\\ \\QR:\ \dfrac{1-4}{4-0}=-\dfrac{3}{4}\\ \\RS:\ \dfrac{-3-1}{1-4}=\dfrac{4}{3}\\ \\SP:\ \dfrac{0-(-3)}{-3-1}=-\dfrac{3}{4}

Since the slopes of PQ and RS are the same, lines PQ and RS are parallel. Since the slopes of QR and SP are the same, lines QR and SP are parallel.

The slopes \frac{4}{3} and -\frac{3}{4} have the product of

-\dfrac{3}{4}\cdot \dfrac{4}{3}=-1,

then lines are pairwise perpendicular.

This means PQRS is a square.

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4 years ago
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Answer:

two legs are 3 and 4, hypotenuse is 5

Step-by-step explanation:

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Also, x*y=-25.

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