Question

x | y
12 | 9
13 | 10
14 | 11
15 | 12
16 | 13
what is the algebraic equation for the following table?
options: y = 3x, y = x + 3, y = x - 3, y = x ÷ 3

Explanation:

Step1: Test first pair (12,9)

Check $y=x-3$: $12-3=9$, matches.

Step2: Test second pair (13,10)

Check $y=x-3$: $13-3=10$, matches.

Step3: Test third pair (14,11)

Check $y=x-3$: $14-3=11$, matches.

Step4: Test fourth pair (15,12)

Check $y=x-3$: $15-3=12$, matches.

Step5: Test fifth pair (16,13)

Check $y=x-3$: $16-3=13$, matches.

Answer:

y = x - 3