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The following graph shows the depths of a submarine at certain times after it leaves port. a. Once the sub begins to dive, how long does it take to reach $-1,000$ ficet in depth?b. For how long does the sub travel at a depth of $1,000$ foct?(GRAPH CANNOT COPY)
a) 1 hourb) 3 hours
Algebra
Chapter 3
Graphing Linear Equations and Inequalities in Two Variables; Functions
Section 1
Graphing Using the Rectangular Coordinate System
Graphs and Statistics
Equations and Inequalities
Linear Functions
Systems of Equations and Inequalities
Missouri State University
Campbell University
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this time using the same graph. We want to be able to determine different depths and times for these new situations. So now we're wondering after its it goes underwater. It submerges okay, this is sea level, but it's gone downward right here. Starting right here is when it starts to go down. We want to know, how long does it take to reach that 1000 feet? So here's where it's starting to go underwater. Here's where hits 1000 feet. This distance is one increments of time on the time axis, and that's measured in hours. So for a one hour is how long it takes to get all the way down to 1000 feet. Then we want to know how long it's at 1000 feet. So it's at 1000 feet from this mark, which is the three hour mark all the way to here, which is the six hour mark. So three and six that means it's under three hours
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