The answer to my question
2 answers:
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For every point on the curve, imagine drawing a vertical line until that vertical line reaches the x axis.
Doing this will essentially shade the x axis number line from x = -4 to x = 2
The graph shows points in which the x coordinate is as small as -4 or as large as 2, or anything in between
Domain:
Answer: Choice B
note: the domain is the set of allowed inputs or x values
Doing this will essentially shade the x axis number line from x = -4 to x = 2
The graph shows points in which the x coordinate is as small as -4 or as large as 2, or anything in between
Domain:
Answer: Choice B
note: the domain is the set of allowed inputs or x values
Answer:
279 silvery minnow
Step-by-step explanation:
Number of Silvery Minnows initially tagged = 54
Number of minnows captured = 62
Number of tagged minnows in captured ones = 12
Remember that in the very beginning there were no tagged minnows. 54 minnows were captured, tagged and released. This means, there are total 54 tagged minnows in the entire population. Lets say there are x number of minnows in total.
So, in x minnows, 54 are tagged ones.
When 62 minnows are captured, only 12 are tagged ones and remaining are un-tagged. Since, the minnows were randomly captured, we can develop a proportion from this case to estimate the total population of minnows in the Rio Grande River.
Ratio of tagged minnows to total population must be equal to the ratio of captured tagged minnows in total captured minnows.
i.e.
This means, there were 279 silvery minnows in the Rio Grande River.