Question

The table of values below represents inverse variation. What is the value of k?

Answer 1

b) k = 30

Explanation:

Formula we use,

→ y = k/x

Now the value of k will be,

→ y = k/x

→ 10 = k/3 || → 6 = k/5

→ k/3 = 10 || → k/5 = 6

→ k = 10 × 3 || → k = 6 × 5

→ [ k = 30 ] || → [ k = 30 ]

Hence, the value of k is 30.

Answer 2

• B) k = 30

---------------------------

It is assumed the first column represents x- values and the second column represents y- values.

Inverse variation equation:

• y = k/x, where k is constant.

Substitute one pair of coordinates, x = 3, y = 10:

• 10 = k / 3
• k = 10*3
• k = 30

Correct choice is B.