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3 years ago

Given that y varies directly with x in the table below, what is the value of y if the value of x is 7?

Mathematics

2 answers:

Licemer1 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

just took the quiz and got it right

Paha777 [63]3 years ago

4 0

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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