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Gre4nikov [31]
3 years ago
10

A certain species of fish has been declining in population by 7% per year. That means it's rate of decay is 0.93. The population

at time zero is 500,000. What is the initial population?
Mathematics
1 answer:
Anna11 [10]3 years ago
5 0
We know that a rate of decay for a certain species of fish is 0.93. It means that it has been declining in population 7% per year. But we also know that the population at time zero ( at start ) is 500,000.The initial population = the population at time zero.Answer: The initial population is 500,000.

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Answer:

Initial value 12, rate of change: -2

Step-by-step explanation:

Step 1

Find the rate of change

we know that

In a linear equation the rate of change is equal to the slope

The formula to calculate the slope between two points is equal to  

m=\frac{y2-y1}{x2-x1}  

we have

A(1,10)\ B(2,8)  

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Step 2

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The equation of  the line into slope-point form is equal to

y-y1=m(x-x1)

Substitute

y-10=-2(x-1)

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The initial value is the value of y when the value of x is equal to zero (is the y-intercept)

y=-2*0+12=12----> initial value

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3 years ago
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Hatshy [7]

Answer:

A

Step-by-step explanation:

We are given two rational functions m(x) and n(x) that have the same vertical asymptotes both with a single x-intercept at x = 5.

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C represents m(x) being shifted 5 units to the right. This changes both the x-intercept and the vertical asymptotes.

Likewise, D represents m(x) being shifted 5 units to the left. Again, this will change both the x-intercept and the vertical asymptotes.

Therefore, the only choice left is A. It represents a vertical stretch by a factor of 5. This preserves the x-intercepts and the vertical asymptotes. Consider the function:

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Step-by-step explanation:

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