If x is equal to 4 / 7 of Y, then what is the () relationship between X and y? If y = 3.2X (x, y are not equal to 0), then x and y are () and fill in the positive and negative proportion

If x is equal to 4 / 7 of Y, then what is the () relationship between X and y? If y = 3.2X (x, y are not equal to 0), then x and y are () and fill in the positive and negative proportion

If x is equal to 4 / 7 of Y, then x and y are (inverse) related. If y = 3.2X (x, y are not equal to 0), then x and y are (positive) related

Why is y = 3 / x a positive proportion?

Do you know what the definition of positive proportion is? In y = x / 3 (1 / 3 is greater than zero), y increases with the increase of X and decreases with the decrease of X. if y = 3 / x, y decreases with the increase of X and increases with the decrease of X. This is the inverse example. The definition of positive proportion is as follows: 1

If 4.5 out of x = y out of 4, then what's the ratio between X and y? (can you teach me how to judge the positive ratio and the negative ratio

4.5 of x = y of 4
(4.5 × 4) = y
18 / x = y
xy=18
So: X and y are inversely proportional
Judgment:
When the product of X and Y is a fixed value, they are inversely proportional
When the ratio of X and Y is a fixed value, they are in positive proportion