Answer:
The answer is F because the answer to the question featured in F does not vary.
Step-by-step explanation:
This is a parabola which has vertex at the origin and opens upwards.
general form is x^2 = 4ay where a is the focus
the focus is the same distance from the vertex as the directrix So it is at the point (0, 6)
required equation is x^2 = 4*6 y
or y = (1/24) x^2
Divide 20 by 4=5
then 5 by 7=5/7
k=5/7
Answer: 

Step-by-step explanation:
Let x be the number of computers Grade 3 and grade 4 has and y be the numbers of computers the rest of school has.
Then, x= Grade 3 computers +Grade 4 computers.

And y = Total computers - x

Therefore, The equations can be used to find how many computers the rest of the school has.

