Question

A proportional relationship between y and x. When x = 5, y=−7 .

What is the constant of proportionality, k?

Enter your answer as a simplified or improper fraction in the box.
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Answer 1

The number

5

7

tells you that when

x

increases of

1

then

y

always increases of

5

7

.

Graphically:

graph{7/7*x [-10, 10, -5, 5]}

Explanation: