# Thread: Algerbra 2 homework +rep

1. ## Algerbra 2 homework +rep

 x y 4 3
The table shows one (x, y) pair for a proportional function. What is the constant of proportionality?
A) 3/4
3
C) 4
D) Not enough information is given to determine the constant of proportionality.

2. Originally Posted by deathwish42
i think its A
can you show some type of proof?

3. i always thought of it as k = x over y so thats how i got 3/4

4. Originally Posted by Wolf
 x y 4 3
The table shows one (x, y) pair for a proportional function. What is the constant of proportionality?
A) 3/4
3
C) 4
D) Not enough information is given to determine the constant of proportionality.
constant of proportionality is x = ky where k is the constant.

If x = 4 and y = 3 then this is the equation.

4 = k(3)
4/3 = k

You can try going with A, but I'm near positive the answer is not located in the list of answers you gave. I might have miscalculated something though.

5. i think you have to switch it Ciricus so it would be 4/3 = k is changed to k = 3/4

6. Originally Posted by Ciricus
constant of proportionality is x = ky where k is the constant.

If x = 4 and y = 3 then this is the equation.

4 = k(3)
4/3 = k

You can try going with A, but I'm near positive the answer is not located in the list of answers you gave. I might have miscalculated something though.
It's the other way around xD

y = kx

7. ## The Following User Says Thank You to Ana For This Useful Post:

Aeires (07-08-2012)

8. Originally Posted by Aerandria
It's the other way around xD

y = kx
Actually, I think the answer is D.

Answer is D I think. Reason is because it doesn't tell you what to relate the equation to. IE, the constant of proportionality can be y = kx or x = ky. If you do not know which side the constant effects, you can not ascertain the exact constant. It can be either one, given that the problem tells you what quantity is proportional to the other.

Source: http://www.icoachmath.com/math_dicti...tionality.html

9. oh i guess that is true

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•