Writing an linear equation from a given scenario
Answer:
Choice B
Step-by-step explanation:
Please refer to my answer from this question to know more about writing a linear equation from a given scenario: brainly.com/question/24599307
Scenario: A submarine dives [tex]70[/tex] feet per minute.
We let [tex]f[/tex], be the position of the submarine from sea level as a function of [tex]t[/tex], the time (in minutes) since the submarine dived.
The given scenario states that for every minute, the position of the submarine decreases (because the submarine is going in a downward direction) by [tex]70[/tex] feet. So [tex]f(t)[/tex] can be defined as [tex]-70t[/tex].
Now we can select two points for the graph. We can select points [tex](1, f(1))[/tex] and [tex](2, f(2))[/tex].
Evaluation of function:
[tex]f(1) = -70(1) \\ f(1) = -70[/tex]
[tex]f(2) = -70(2) \\ f(2) = -140[/tex]
Our points are [tex](1, -70)[/tex] and [tex](2, -140)[/tex]
Choice A doesn't touch our chosen points. In Choice C, it would be the case if the submarine is going in upward direct.
So the correct graph is Choice B.
