Question

The table below shows the values of y for different values of x:


x y
0 0
1 3
2 6
3 9


Which equation shows the relationship between x and y?
y = 3x
x = 3y
y = 3 + x
x = 3 + y

Answer 1

y = 3x

Putting (0,0)
the equation is satisfied.

Putting (1,3)
3 = 3(1) , satisfied

Putting (2,6)
6 = 3(2), satisfied

Putting (3,9)
9 = 3(3), satisfied