Построить график функции а)у=-2х

To plot the graph of у = -2х, you can follow these steps:

1. Choose some values for х. For example, you can select -3, -2, -1, 0, 1, 2, 3.
2. Substitute these values into the equation to find the corresponding у-values. Multiply each х-value by -2 to get у. For example, when х = -3, у = -2*(-3) = 6.
3. Plot these points on a coordinate axis. For example, when х = -3, у = 6, so you place a point at the coordinate (-3, 6).
4. Connect the points to form a straight line. Since the equation у = -2х represents a linear function, the graph will be a straight line passing through the points.

Remember that the graph of у = -2х is a decreasing line with a slope of -2.