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.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: