Answer: that answer is A, assign a number to each family, use a computer program to select 20 random numbers
Step-by-step explanation:
Answer:
C. 2
Step-by-step explanation:
Use the formula
x = −
b
/2
a
to find the maximum and minimum.
(
−
3
,
2
)
Step-by-step explanation:
the relationship between x and y is defined by a constant factor.
you can "go" from x to y and from y to x consistently and without any interruptions by applying that constant factor.
that makes it a linear relationship (a line on a chart, hence the name).
proportional relationships are relationships between two variables where their ratios are equivalent. another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality".
so, yes, it is proportional.
and the table is then
x y
0 0
3 3×2/3 = 2
6 6×2/3 = 4
9 9×2/3 = 6
