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Leona [35]
2 years ago
7

4-13 writing exponential equations

Mathematics
1 answer:
balu736 [363]2 years ago
6 0

Answer:

y=2(\frac{1}{3})^x

Step-by-step explanation:

Let the equation of the given exponential function is,

y = a(b)ˣ

Graph of the given exponential function passes through (0, 2) and (-1, 6)

For a point (0, 2),

2 = a(b)⁰

a = 2

For another point (-1, 6),

6 = 2(b)⁻¹

3 = b⁻¹

b = \frac{1}{3}

Therefore, equation of the exponential function will be,

y=2(\frac{1}{3})^x

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Which table shows a function that is decreasing only over the interval
joja [24]

Answer:

Table 4th is showing the function that is decreasing only over the interval

Step-by-step explanation:

We have been given four tables below:

To determine the function that is decreasing only in the given interval

(-1,\infty)

We will check the values after -1 in all four tables

The table in which values is only  decreasing after -1 will be the table which shows a function is decreasing only.

In table 1 the value of x is increasing

In table 2 and 3 the value is increasing and then decreasing but we will consider only decreasing case

Therefore, Table 4th is correct.


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8 0
3 years ago
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sammy [17]

Answer:

0

Step-by-step explanation:

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5 0
2 years ago
Anyone know the answer?
Inessa05 [86]
The answer appears to be choice 3 because it resembles an exponential function.
But I might be wrong.

Hope this helps :)


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