Answer:
See below...
Step-by-step explanation:
For a function whose formula is in this pattern:
Amplitude:
Period:
Phase Shift: C
In this question,
Amplitude: 4
Period:
Phase Shift:
There is no vertical shift, so the midline is the x-axis whose equation is y = 0.
Also, because there is no vertical shift, the maximum is 4 and the minimum is -4.
The graph is attached.
Answer: A; 6.3%
Step-by-step explanation:
Problem 1
For the first problem, we first want to find y so that we can plug it into the expression.
We can use elimination method for the system of equations to solve.
3x+3y=21
3x-y=5
We subtract both equations to eliminate x.
4y=16 [divide both sides by 4]
y=4
Now that we know y, we can plug it into the expression.
[divide]
[subtract]
We know that the answer is A.
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Problem 2
For the second problem, we need to know how to calculate percent error. The formula for precent error is . We know that the exact value is 80 because the buyer was supposed to given 80. 75 is the measured value because that was what the buyer was given.
[subtract]
[solve absolue value]
[divide]
[multiply]
Since the problem said to round to one decimal place, we know that the answer is 6.3%.
Step-by-step explanation:
Answer:
Midline: -2
Amplitude: 1.5
Period: 4
Step-by-step explanation: I got it right on the plato test.
The Midline is the middle of the number of the function.
The Amplitude is from the midline to the highest or lowest point of the function.
The period is the distance on the x axis from the two points.
Hope this helps!
