linear function A and linear function B both have the same values as shown below. why will the output values for linear function
1 answer:
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So Matt is canoeing on a Lake.
It took him 2 hours to get to the lake 4 kilometers away.
On the way back it takes him 90 minutes.
Now, lets say that he is canoeing at 'u' miles per hour and lets assume that the speed of the wind is 'v' miles per hour.
While he sails in opposite to the wind net speed is given by .
Using the relation between distance, time, and speed we get:
kilometers per hour so we get,
..............(equation 1)
Now when he sails along the wind, the net speed is given by
Now, again use the same relation as stated above we get:
(here we have converted 90 minutes into hours
)
..............(equation 2)
Solving equation 1 and 2 we get:
, putting the value of 'u' in equation 1 we get
.
So the speed at which Matt is canoeing is 'u' that is 2.3 kilometers per hour and the wind is flowing at 0.3 kilometers per hour.
So Matt can canoe at 2.3 kilometers per hour without wind. And wind is slowing him down by 0.3 kilometer per hour.
Answer:
The given function is
Which is a parabola concave down with vertex at the origin of the coordinate system.
If the width of the arch is 800 feet, that means 400 feet on negative side and 400 feet and positive.
The image attached shows the graph of this parabola, where you can see the points for each extreme of the arch.
Notice that each point of the base of the arch is at y = -200, that means the height of the arc is 200 feet.
Now, the domain for this function is all real numbers. The range for this function is all number least or equal than zero.
