Question

The table below contains a list of ordered pairs.





x y
–2 7
–1 4
0 1
1 –2
2 –5








Which equation represents the relationship between x and y?




y
=
−
3
x
+
1


y
=
−
3
x
−
1


y
=
3
x
−
1


y
=
3
x
+
1

Answer 1

y = −3x + 1

Reason: y changes by −3 when x increases by 1 (slope = −3), and when x = 0, y = 1 (y‑intercept = 1), so y = −3x + 1.