Answer:
Step-by-step explanation:
It seem the constant of variation is k = 1/3.
<u>The equation is:</u>
<u>Let's verify the values in the table:</u>
- 1 = 3*1/3 ⇒ 1 = 1, correct
- 2 = 6*1/3 ⇒ 2 = 2, correct
- 6 = 9*1/3 ⇒ 6 = 3, incorrect
- 4 = 12*1/3 ⇒ 4 = 4, correct
No mathematics is useful for the brain to function more often and become smarter and face the mathematical problems in the world like taxes and maybe investing money
X+y+z=3....... (x-y)+z=-3 ......... (x-z)=y+1.......