The straight line is given by the equation 2x + 3y + 25 = 0. Does the point K (-4; -7) belong to this straight line?
| May 29, 2021 | education
2x + 3y + 25 = 0 ⇔ x = (-3y – 25) / 2.
For x = -4, the equality takes the form -4 = (-3y – 25) / 2. Let’s solve the resulting equation.
-4 = (-3y – 25) / 2. | * 2
-8 = -3y – 25. | * (-one)
8 = 3y + 25.
3y = 8 – 25.
3y = -17.
y = -17 / 3.
-17/3 ≠ -7 ⇒ point K does not belong to the specified schedule.
Answer: K does not belong to the straight line.
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.
