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saul85 [17]
3 years ago
15

If f (x) = 3, what is the value of f (-7) A. x -10 B. 3 C. -4 D. -21

Mathematics
1 answer:
Gemiola [76]3 years ago
7 0

Answer:

D

Step-by-step explanation:

3*(-7)=(-21)

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First find the slope of f(x).

m=(y2-y1)/(x2-x1)

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m=-4/2

m=-2

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1=-2(2)+b

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y=-2x+5

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g(x)=6m+3

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h(x)=3x+4

So h(x) has a y-intercept of 4


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4.

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Note 3^3 = 3*3*3

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Find the value of x in degrees
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Answer:

x=37

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angles inside a triangle add up to 180

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What function is increasing? will give brainlist !
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Answer:

Option B.

Step-by-step explanation:

Option A.

f(x) = (0.5)^{x}

Derivative of the given function,

f'(x) = \frac{d}{dx}(0.5)^x

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      = -(0.693)(0.5)^{x}

Since derivative of the function is negative, the given function is decreasing.

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f'(x) = \frac{d}{dx}(5)^x

      = (5)^x[\text{ln}(5)]

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Since derivative is positive, given function is increasing.

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f'(x) = \frac{d}{dx}(\frac{1}{5})^x

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Since derivative is negative, given function is decreasing.

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Since derivative is negative, given function is decreasing.

Option (B) is the answer.

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