Given that y varies directly with x in the table below, what is the value of y if the value of x is 7?
2 answers:
Answer:
42
Step-by-step explanation:
just took the quiz and got it right
Answer:
y = 42
Step-by-step explanation:
Given that y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
To find k use an ordered pair from the table.
Using x = 2 when y = 12, then
12 = 2k ( divide both sides by 2 )
6 = k
y = 6x ← equation of variation
When x = 7, then
y = 6 × 7 = 42
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Step-by-step explanation:
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