How do you find what x is?

(-2,8) and (x,12)

Unless you know the slope, you can not.

What is the rest of the problem?

They are ordered pairs and are for the same direct variation.

Oh, you need to know it is direct variation, That gives you the slope because the line goes through two known points, (0,0) and (-2,8).

slope = (8-0)/(-2-0) = -4
y = -4 x
12 = -4 x
x = -3

To find the value of x in the coordinates (-2, 8) and (x, 12), we can use the concept of coordinate pairs and the coordinate plane.

In coordinate pairs, the first number represents the x-coordinate, and the second number represents the y-coordinate. In the given coordinates (-2, 8), the x-coordinate is -2, and the y-coordinate is 8.

Now, let's use the information of the second coordinate (x, 12). Since the y-coordinate is already given as 12, we need to find the corresponding x-coordinate. The x-coordinate of the second coordinate (x, 12) will be the value we are looking for.

Therefore, to find what x is, we need to set the y-coordinate values equal to each other:

8 = 12

Now, since this equation is not true, there is no value for x that will make the y-coordinates equal. In other words, there is no x value that corresponds to the y-coordinate of 12, given the first coordinate (-2, 8).

So, in this case, we cannot determine the value of x since there is no solution for the equation.