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Anna007 [38]
3 years ago
10

If f(x) = 5x2+2, then what is the slope of f(x) at x = 4?

Mathematics
1 answer:
REY [17]3 years ago
6 0

The slope of a function at a point is the value of its derivative there.

... f'(x) = 5·(2x) + 0 = 10x . . . . . . using the power rule: (d/dx)(xⁿ) = n·xⁿ⁻¹

Then

... f'(4) = 10·4 = 40 . . . . . the slope at x=4

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Someone help please i am so bad at point slope stuff
Fynjy0 [20]
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2)Write the point-slope form of the equation of the line that passes through the points (6, -9) and (7, 1). 
m = (-9 - 1) / (6 - 7) = -10/-1 = 10
y + 9 = 10 (x - 6)
y = 10x - 69

3) A line passes through the point (-6, 6) and (-6, 2). In two or more complete sentences, explain why it is not possible to write the equation of the given line in the traditional version of the point-slope form of a line. 

4)Write the point-slope form of the equation of the line that passes through the points (-3, 5) and (-1, 4).
m = (5 - 4) / (-3 - -1) = 1/-2
y - 5 = (-1/2) (x +3)
y = (-1/2)x + 7/2

5) Write the point-slope form of the equation of the line that passes through the points (6, 6) and (-6, 1).
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y = (5/12)x + 17 / 2

6) Write the point-slope form of the equation of the line that passes through the points (-8, 2) and (1, -4).
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7) Write the point-slope form of the equation of the line that passes through the points (5, -9) and (-6, 1).
m = (-9 - 1) / (5 - -6) = -10 / 11
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y = (-10 / 11)x -49/11

</span>
3 0
4 years ago
Will give Brainliest! if right!
Ilya [14]
<span>46, 37, 16, 24, 47, 23, 19, 31, 25

put in order</span>
16, 19, 23, 24, 25, 31,37, 46, 47

mean = 25

LOWER QUARTILE = (16+ 19+ 23+ 24) / 4 = 20.5

answer 
Lower IQR = 20.5
8 0
3 years ago
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Mrac [35]

Answer:

-0.8 is less than -0.3

Step-by-step explanation:

when dealing with decimals the closer it is to 1 the greater it is

4 0
3 years ago
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How to find the square root of complex numbers?? Find the square root of (6+8i) ??​
ivann1987 [24]

Answer:

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Step-by-step explanation:

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{a}^{2}   = 8

a = 2 \sqrt{2}

b =  \frac{4}{2 \sqrt{2} } =  \sqrt{2}

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Answer:76.7°

Step-by-step explanation:

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