Question

The values of x and y vary directly and one pair of values are given. Write an equation that relates x and y. x=1,y=0.5

Answer 1

Answer:

y = 0.5x

Step-by-step explanation:

Given that x and y vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = 1, y = 0.5

k = $\frac{y}{x}$ = $\frac{0.5}{1}$ = 0.5

y = 0.5x ← equation of variation