Question

Y = 4 - 2x построить график​

Answer 1

Решение во вложение

Answer 2

To plot the graph of the equation Y = 4 - 2x, we will create a simple Cartesian coordinate system. In this equation, Y represents the dependent variable (vertical axis) and x represents the independent variable (horizontal axis).

Let's plot a few points to get an idea of the graph and then connect them to form a line.

We can choose some arbitrary values for x and calculate the corresponding values for Y. Let's use x = -2, -1, 0, 1, and 2:

For x = -2: Y = 4 - 2(-2) = 4 + 4 = 8 So, one point is (-2, 8).

For x = -1: Y = 4 - 2(-1) = 4 + 2 = 6 So, the next point is (-1, 6).

For x = 0: Y = 4 - 2(0) = 4 So, the point is (0, 4).

For x = 1: Y = 4 - 2(1) = 4 - 2 = 2 So, the next point is (1, 2).

For x = 2: Y = 4 - 2(2) = 4 - 4 = 0 So, the last point is (2, 0).

Now, let's plot these points and connect them with a straight line:

(Note: The values on the axes will depend on the scale you choose.)

luaCopy code
    |         *
  8 |           *
    |             * 
  6 |               *
    |                 *  
  4 |                  *  
    |                    *  
  2 |                     *
    |                       * 
  0 +-------------------------*
    -2  -1   0   1   2

The line connecting these points will be a straight line sloping downwards from left to right. This is the graph of the equation Y = 4 - 2x.