The function is given by the formula y = -2 + 5. Whether the graph of the function belongs to the points

The function is given by the formula y = -2 + 5. Whether the graph of the function belongs to the points A (1; 3) and B (-1; 6).

In order to check whether these points belong to the graph of the function y = -2 * x + 5. It is necessary to take the coordinates of the x-axis and the y-axis from the point and substitute them, respectively, in the equation.

If the obtained equality holds, then the point belongs to the function; if we obtain an inequality, then the points are outside the graph of the function.

Check point A (1; 3).

x = 1; y = 3;

y = -2 * x + 5

3 = -2 * 1 + 5

3 = -2 + 5

3 = 3

We got equality, so the point A (1; 3) belongs to the function.

Check point B (-1; 6).

x = -1; y = 6.

y = -2 * x + 5

6 = -2 * (-1) + 5

6 = 2 + 5

6! = 7

Since the inequality was obtained, the point B (-1; 6) does not belong to the function.

Answer: Point A (1; 3) belongs to the function y = -2 * x + 5, and point B (-1; 6) does not belong to the function y = -2 * x + 5.