GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -Therefore, the required expression is y = ( k × x ) / z2, where k is the constant of proportionality.
Detailed explanation-2: -y = c 1/x. Intuitively this means that if x doubles then y is reduced by 1/2 and if x triples then y is reduced by 1/3. For example if you are going on a 200 mile drive then the time it takes, y, is inversely proportional to your average speed, x. y = 200 1/x.
Detailed explanation-3: -Summary: Suppose that y varies directly with x and inversely with z, y = 18 when x = 15 and z = 5. The equation that models the relationship is y = 6x/z. The value y when x = 21 and z = 7 is 18.
Detailed explanation-4: -What is the inverse variation formula? The inverse variation is represented by x = k/y or xy = k.