Question

On which of the following lines does the point (7, 1) lie?

a y= 5x + 4
b y= -4x + 3
c y= -6 +8
d y= x - 10

Answer 1

We will just plug in the values:  x = 7,  y = 1
A ) 1 ≠ 35 + 4
B ) 1 ≠ - 28 + 3
C ) 1 = - 7 + 8  ( correct )
D ) 1 ≠ 7 - 10
Answer:
C ) y = - x + 8