MATH SOLVE

7 months ago

Q:
# Two quantities, x and y, are directly proportional. If x is tripled, what happens to y? (20 points)a) It is multiplied by 1/3b) It is tripledc) It is multiplied by 9d) It depends on the starting value of x

Accepted Solution

A:

If x and y are directly proportional, that means Y = kX. The variable k here is a constant. When we say x is tripled, k must be 3.

Let's have an example. Let's assume that x is 5. If we triple 5, it would equal to 15.

y = 3(5)

15 = 15

Therefore, the answer to this problem would be:

b) It is tripled

Let's have an example. Let's assume that x is 5. If we triple 5, it would equal to 15.

y = 3(5)

15 = 15

Therefore, the answer to this problem would be:

b) It is tripled