# Which of the points A (0; 0), B (2; -4), C (5; 3), D (-4; 8) belong to the graph of the linear function y = -2x.

September 22, 2021 | education

| To check whether a point belongs to a given function, you need to substitute the value of a given point into the equation of the function, and check if the expression is correct.

a) 0 = – 2 * 0;

0 = 0.

Answer: point A (0; 0) belongs to the graph of the function.

b) – 4 = – 2 * 2;

– 4 = – 4.

Answer: point B (2; – 4) belongs to the graph of the function.

c) 3 = – 2 * 5;

3 ≠ – 10.

Answer: point C (5; 3) does not belong to the graph of the function.

d) 8 = – 2 * (- 4);

8 = 8.

Answer: point D (- 4; 8) belongs to the graph of the function

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.