Question

Vincent is calculating values for a direct variation which has a constant of variation of k=13.

Answer 1

Answer:

$(6 = 3 \: is \: incorrect).$

• 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.

Answer 2

Answer:

• (9, 6) is incorrect

Step-by-step explanation:

It seem the constant of variation is k = 1/3.

The equation is:

• y = kx or
• y = 1/3x

Let's verify the values in the table:

• 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