Which of the following points does not lie on the line y = 3x + 4?
We have,
y = 3x + 4 (i)
a. (1, 7) [putting x = 1 and y = 7 in (i)]
7 = 3(1) + 4
7 = 7
Thus, A lies on the line.
b. (2, 10) [putting x = 2 and y = 10 in (i)]
10 = 3(2) + 4
10 = 10
Thus, B lies on the line.
c. (-1, 1) [putting x = -1 and y = 1 in (i)]
1 = 3(-1) + 4
1 = 1
Thus, C lie on the line.
d. (4, 12) [putting x = 4 and y = 12 in (i)]
12 = 3(4) + 4
12 ≠ 16
Thus, D does not lie on the line.
∴ Option D is correct