Question

Tell whether the equation
5 (x+1)= 25y+ 5 represents a direct variation. If so, find the constant of variation, k.

Select one:
a. Not a direct variation
b.Direct variation, k=1/5
c. Direct variation, k=5
d. Direct variation k=1

Answer 1

B. Direct variation, k = 1/5

5x + 5 = 25y + 5
5x = 25y
x = 5y
y = 1/5x