Answer:
P = 0.75
Step-by-step explanation:
Given that P varies directly as I then the equation relating thenm is
P = kI ← k is the constant of variation
To find k use the condition P = 0.5 when I = 4, thus
k = [tex]\frac{P}{I}[/tex] = [tex]\frac{0.5}{4}[/tex] = 0.125
P = 0.125I ← equation of variation
When I = 6, then
P = 0.125 × 6 = 0.75