Question

Which equation best represents the relationship between x and y in the table below?

x 1 2 3 4 5
y 6 9 14 21 30
y
=
2
x
+
5

y = 2 x + 5

y
=
3
x
+
3

y = 3 x + 3

y
=
x
2
+
5

y = x 2 + 5

y
=
2
x
2
−
4

Answer 1

y = 3 x + 3 is the required equation.

let's check it

when x=1

y=3×1+3=6 true

when x=2

y=3×2+3=9true do similarly like this.