Determine whether y varies directly with x. If so, find the constant of variation and write the function rule.
x
y
60
15
64
16
72
18
Question content area bottom
Part 1
Does y vary directly with x?
No
Yes
Your answer is correct.
Part 2
What is the constant of variation? Select the correct choice and fill in any answer boxes in your choice below.
A.
kequals
one fourth
(Simplify your answer. Type an integer or a fraction.)
Your answer is correct.
B.
There is no constant of variation.
Part 3
What is the function rule? Select the correct choice and fill in any answer boxes in your choice below.
A.
yequals
enter your response here
(Simplify your answer. Use integers or fractions for any numbers in the expression.)
B.
There is no function rule.
Part 1: Yes, y varies directly with x.
Part 2: The constant of variation is 1/4.
Part 3: The function rule is y = (1/4)x.