Determine whether y varies directly with x. If​ so, find the constant of variation and write the function rule.

Question

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.

Answer 1

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.