Question

The value of y varies directly with x. When y=55, x=1/4. Determine the constant of proportionality

Answer 1

k = 220

Explanation:

Proportion of y and x

• y = kx

Given :

• y = 55
• x = 1/4

Solving :

• 55 = k/4
• k = 55 x 4
• k = 220