Question

Which equation has a constant of proportionality equal to
\[1\]?
Choose 1 answer:
Choose 1 answer:
(Choice A)

\[y=\dfrac{10}{11}x\]
A

\[y=\dfrac{10}{11}x\]
(Choice B)

\[y=\dfrac{7}{8}x\]
B

\[y=\dfrac{7}{8}x\]
(Choice C)

\[y=\dfrac{3}{15}x\]
C

\[y=\dfrac{3}{15}x\]
(Choice D)
\[y=x\]
D
\[y=x\]

Answer 1

The equation that has a constant of proportionality equal to \(1\) is:

(Choice D)
\[y=x\]

In this equation, \(y\) is directly proportional to \(x\) with a constant of proportionality of \(1\). In other choices, the constant of proportionality is represented by the coefficients of \(x\) (for example, \(\frac{10}{11}\) and \(\frac{7}{8}\)), which are not equal to \(1\).