Harris has r bottles. Donna has 60 more bottles
1 answer:
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Answer:
Vertex = (7,5)
Length of latus rectum = 2 units
Step-by-step explanation:
The vertex form of a parabola is
...(1)
where, (h,k) is vertex and length of latus rectum is .
The given equation is
...(2)
On comparing (1) and (2), we get
So, vertex of parabola is (7,5).
Length of latus rectum is
Therefore, the length of the latus rectum is 2 units.
The solution to this system is (x, y) = (8, -22).
The y-values get closer together by 2 units for each 2-unit increase in x. The difference at x=2 is 6, so we expect the difference in y-values to be zero when we increase x by 6 (from 2 to 8).
You can extend each table after the same pattern.
In table 1, x-values increase by 2 and y-values decrease by 8.
In table 2, x-values increase by 2 and y-values decrease by 6.
The attachment shows the tables extended to x=10. We note that the y-values are the same (-22) for x=8 (as we predicted above). That means the solution is ...
... (x, y) = (8, -22)
