4. At Grande Anse Beach the height of the water in metres is hA modelled by the function h(t) = pcos(q × t) + r, where t is the number of hours after 21:00 hours on 10. December 2017. The following diagram shows the graph of h , for 0

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
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How do I complete parts D,E, and F?
4. At Grande Anse Beach the height of the water in metres is h ()
modelled by the function h(t) = pcos(q × t) + r, wheret
is the number of hours after 21:00 hours on 10. December
2017. The following diagram shows the graph of h , for
0<t<72.
B (12.5, 1.5)
1.5
The point A(6.25, 0.6) represents the first low tide and
B(12.5, 1.5) represents the next high tide.
A (6.25, 0.6) dulovs
a. How much time is there between the first low tide 200
and the next high tide?
24
48
72
+ニ12.5-6.2 (+こ6,2s his
b. Find the difference in height between low tide and high tide.
サニ - 0.6 H=
am
c. Find the value of p. [
ア= Pニ19m)
d. Find the value of q.
o das orh 1sdt rbue qo sulsy desteo
e. Find the value of r.
f. There are two high tides on 12 December 2017. At what time does the second high tide
occur? [
Transcribed Image Text:4. At Grande Anse Beach the height of the water in metres is h () modelled by the function h(t) = pcos(q × t) + r, wheret is the number of hours after 21:00 hours on 10. December 2017. The following diagram shows the graph of h , for 0<t<72. B (12.5, 1.5) 1.5 The point A(6.25, 0.6) represents the first low tide and B(12.5, 1.5) represents the next high tide. A (6.25, 0.6) dulovs a. How much time is there between the first low tide 200 and the next high tide? 24 48 72 +ニ12.5-6.2 (+こ6,2s his b. Find the difference in height between low tide and high tide. サニ - 0.6 H= am c. Find the value of p. [ ア= Pニ19m) d. Find the value of q. o das orh 1sdt rbue qo sulsy desteo e. Find the value of r. f. There are two high tides on 12 December 2017. At what time does the second high tide occur? [
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