I would really appreciate it if someone could answer this I will give a brainlist:)
2 answers:
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The population is increasing every year. so we use exponential growth function
Where 'a' is the initial population
r is the rate of increase
x is the years
y is the final population
In 2015, the population of a small town in Florida is 95
Initial population a= 95
r= 15%= 0.15
x = 2023 - 2015 = 8 years
Plug in all the values and find out y
y = 290.607
The population in 2023 is 291
<h3>Answers:</h3>
Problem 1
- Domain =
, interval notation (-3, 3]
- Range =
, interval notation [-3, 3)
- Is it a function? Yes
Problem 2
- Domain =
, interval notation
- Range = All real numbers, interval notation
- Is it a function? No
Problem 3
- Domain =
, interval notation [-4, 3)
- Range =
, interval notation (-4, 3]
- Is it a function? Yes
Problem 4
- Domain = All real numbers, interval notation
- Range =
, interval notation
- Is it a function? Yes
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Explanations:
- The left most point is when x = -3, and we are not including this value due to the open hole. The other endpoint is included because it is a filled in circle. The domain is therefore
- The smallest x value is x = -2. There is no largest x value because the arrows say to go on forever to the right. We can say the domain is
. The range is
to indicate "all real numbers". This graph fails the vertical line test, so it is not a function. The vertical line test is where we check to see if we can pass a vertical line through more than one point on the curve. In this case, such a thing is possible which is why it fails the test.
- This is the same idea as problem 1, though note the endpoints are flipped in terms of which has an open circle and which doesn't. It is not possible to draw a single vertical line to have it pass through more than one point on the curve, so it passes the vertical line test and we have a function.
- This is a function because it passes the vertical line test. The domain is the set of all real numbers due to the arrows in both directions. Any x value is a possible input. The range is
in interval notation. This is because y = 4 is the largest y value possible. There is no smallest y value due to the arrows.