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1) Click on Link

2)  Save as PNG.
3) Post the PNG file to this thread.

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-equation
-submarine is safe at 0 meters
-what 2 time is your submarine first safe

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find trig, period, the VS, find period by dividing 18/2pie
graph with amplitude of 350 meters. starting with 630 in the middle
start x-axis on 3
add on by current point

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Create a graph based off of the IMPORTANT information given in the word problem

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Starting point, vertical shift, vertical distance, horizontal shift, trig function, amplitude, period of function, reflection or not, B value, and critical points.

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Input high and low points
find period using cos

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Find vert. shift.
-amplitude
-starting point
-b-value

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-Write equation
-Is the submarine safe at 0
- First two times the submarine is safe

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Period- 2pi/18
Amp-  630
HS- 3

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All the values on the y axis will be negative as submarine will always be under water.

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The deepest point for submarine will be -980 and the shallowest will be -280
hence the k value will be the addition of 980 and 280 = 1260/2 further equates
to (-)630. The values for the x axis can simply be taken out by sketching 12 at 280
a and taking out the difference between 3(starting point) and 12, sketching other
points correspondingly.

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-Draw a graph based off the information needed to make one (equation, Amplitude, CPs. etc.)
-Determine whether the submarine is safe @ t=0 and explain why.
-Find 2 times the submarine is safe

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t=3 @ given lowest point, which is -980m.
-Given highest point is -280m
-Since it takes 9 mins to finish half a cycle, 9*2=18= Period
(-280-(-980))/2=350= Amplitude
-Start pt: -980+350=-630