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julia-pushkina [17]
3 years ago
9

Which relation is a direct variation that contains the ordered pair (2, 7)?

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
5 0

Answer:

y=\frac{7}{2}x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a direct relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

step 1

Find the value of the constant of proportionality k

we have

the ordered pair (2, 7)

so

k=\frac{y}{x}  -----> k=\frac{7}{2}

therefore

The relation is

y=kx  ----->  y=\frac{7}{2}x

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