We just need to put x and y coordinates in the equations
1)
[tex]y = 3x + 79 \\ 127 = 3 \times 24 + 79 \\ 127 \neq151[/tex]
2)
[tex]y = 3x + 55 \\ 127 = 3 \times 24 + 55 \\ 127 = 127[/tex]
Let's chek another point
[tex]163 = 3 \times 36 + 55 \\ 163 = 163[/tex]
3)
[tex]y = 3x + 65 \\ 127 = 3 \times 24 + 65 \\ 127 \neq137[/tex]
4)
[tex]y = 3x + 31 \\ 127 = 3 \times 24 + 31 \\ 127 \neq103[/tex]
Answer: The equation is y=3x+55
