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Quiz: Step 4
1-2: Lesson Quiz X
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D Question 1
1 pts
Suppose x = 7 is a solution to the equation 4x - 21x + a) = 8. Find the value of a that makes the equation
true.
03
O&
O2
0-25

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?