Write whether the following statement is True or False. Justify your answer.
The coordinates of points in the table:
x | 0 | 1 | 2 | 3 | 4 |
y | 2 | 3 | 4 | -5 | 6 |
represent some of the solutions of the equation x – y + 2 = 0.
Answer:
False
Solution:
The given equation is x – y + 2 = 0
Put x = 0 in the given equation
0 – y + 2 = 0
y = 2, i.e., the point is (0, 2)
Put x = 1 in the given equation
1 – y + 2 = 0
y = 3, i.e., the point is (1, 3)
Put x = 2 in the given equation
2 – y + 2 = 0
4 = y, i.e., the point is (2, 4)
Put x = 3 in the given equation
3 – y + 2 = 0
5 = y, i.e., the point is (3, 5)
Put x = 4 in the given equation
4 – y + 2 = 0
6 = y, i.e., the point is (4, 6)
The coordinates of points in the table:
x | 0 | 1 | 2 | 3 | 4 |
y | 2 | 3 | 4 | -5 | 6 |
It is given that the above represents some of the solutions of the equation x – y + 2 = 0.
Here all the points satisfy the given equation except (3, -5).
Therefore the given statement is false because one of the table entry is an incorrect solution for the given equation.