Question

X 2 4 8 10 16
Y12 45
09
Oy= 2 x
Oy=1 x
O y=x-1
Oy=x+2

Answer 1

y = x ÷ 2

Explanation:

We are given a table of values, which will be represented as ordered pairs (x,y) below:

(2,1) (4,2) (8,4) (10,5) (16,8)

We are required to select one of the functions that match the numeric relationship between x and y.

We could test them one by one, but at simple observation, we can note the values of y are half of the values of x:

2/2=1

4/2=2

And so on. Thus the only function that divides the value of x by 2 to find the value of y is:

y = x ÷ 2