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Fittoniya [83]
4 years ago
7

The table represents a linear function. A two column table with six rows. The first column, x, has the entries, negative 2, nega

tive 1, 0, 1, 2. The second column, y, has the entries, negative 2, 1, 4, 7, 10. What is the slope of the function? –3 –2 3 4
Mathematics
2 answers:
Radda [10]4 years ago
8 0

Answer: The slope is 3

Step-by-step explanation:

For each unit of run in the x-values, there is an increase of 3 in the y-values. Slope is Rise over Run so 3/1 = 3

AURORKA [14]4 years ago
8 0

Answer:

3

Step-by-step explanation:

I took the test...

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Consider the curve of the form y(t) = ksin(bt2) . (a) Given that the first critical point of y(t) for positive t occurs at t = 1
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Answer:

(a).   y'(1)=0  and    y'(2) = 3

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Step-by-step explanation:

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(b).

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Differentiating the above equation with respect to x, we get

y'(t)=\frac{d}{dt}[k \sin (bt^2)]\\ y'(t)=k\frac{d}{dt}[\sin (bt^2)]

Applying chain rule,

y'(t)=k \cos (bt^2)(\frac{d}{dt}[bt^2])\\ y'(t)=k\cos(bt^2)(b2t)\\ y'(t)= kb2t\cos(bt^2)  

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$y'(t)=kb2t\cos (bt^2)$

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2kbcos(b) = 0

cos b = 0   (Since, k and b cannot be zero)

$b=\frac{\pi}{2}$

And

y'(2) = 3

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$4kb\cos (4b)=3$

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2k\pi(1) = 3$  

$k=\frac{3}{2\pi}$

$\therefore b = \frac{\pi}{2} \text{ and}\  k = \frac{3}{2\pi}$

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