Graph the proportional relationship y=-2x by plotting points.

1 answer

To graph the proportional relationship y = -2x, we need to plot several points that satisfy this equation.

We can choose any value for x and use the equation to find the corresponding y-value. Let's choose three points:

When x = 0:
y = -2(0) = 0
So our first point is (0, 0).

When x = 1:
y = -2(1) = -2
So our second point is (1, -2).

When x = -1:
y = -2(-1) = 2
So our third point is (-1, 2).

Now we can plot these three points on a graph:

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The points are (0, 0), (1, -2), and (-1, 2). Joining these points will give us a straight line.