(2,-4) is new reflected coordinates
Answer:

Step-by-step explanation:
The volume of a sphere is given by :

The rate of change of volume means,

We have, 
So,

So, the volume is increasing at the rate of
.
The answer is the last choice. (a, b), in this question, means the domain or range is from a to b, exclusive. When you use ∞, you would always use the exclusive.
Answer:
One solution, A) (2 , -1)
Step-by-step explanation:
The solution is where the two lines intersect. If the lines do not intersect, it is no solution. If the line intersects once (like in the picture), it has one solution. If it intersects more than once (x), then it will have x amount of solutions.
In this case, the intersection is at (2 , -1), therefore, A) (2 , -1) is your answer.
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