Answer:
k = 4
Step-by-step explanation:
Given that a varies directly as b then the equation relating them is
a = kb ← k is the constant of variation
To find k use the condition a = 8 when b = 2
k = [tex]\frac{a}{b}[/tex] = [tex]\frac{8}{2}[/tex] = 4
Answer:
K = 4
Step-by-step explanation:
Given that varies a directly as b then the equation relating them is
Simply implies that a is directly proportional to b, that is increase in a will cause increase in, and decrease in a will cause decrease in b, and vice versa, where k remains constant.
a α b
a = kb, where k is constant
To find k use the condition a = 8 when b = 2, we make k the subject of the formular
K = a/b
K = 8/2
K = 4
