Which of the following equations represents a proportional relationship?

The correct option is 2. The proportional relationship represented by the equation y=12.5x.

Step-by-step explanation:

If y and x shows a proportional relationship, then

Where, k is constant of proportionality.

First equation is

It does not represents a proportional relationship.

Second equation is

It represents a proportional relationship. So, option 2 is correct.

Third equation is

It does not represents a proportional relationship.

Fourth equation is

It does not represents a proportional relationship.

Therefore correct option is 2. The proportional relationship represented by the equation y=12.5x.

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1