Which of the points A (-1; 1), B (5; 3) belongs to the graph of the linear equation 2x-5y + 7 = 0?
| July 4, 2021 | education
Substitute the coordinates of each of the points into the equation of the line and make sure that the obtained equality is true:
2 * (-1) – 5 * 1 + 7 = 0;
-2 – 7 + 7 = 0 – true.
2 * 5 – 5 * 3 + 7 = 0;
10 – 15 + 7 = 0 – false.
Answer: point A belongs to the graph of the given equation.
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