Answer:
The constant of proportionality in the equation is 7.
Explanation:
Given : The equation
![y=7x](https://img.qammunity.org/2019/formulas/mathematics/college/zircwgf6077mdgr787qglad2ro7eq8rll3.png)
To find : What is the constant of proportionality in the equation ?
Solution :
The general form of constant of proportionality is
![y\propto x](https://img.qammunity.org/2019/formulas/mathematics/college/olflwxvifllfozcugekokk7slt3e8helb3.png)
![y=kx](https://img.qammunity.org/2019/formulas/mathematics/middle-school/osmso2dhwzjg9noqmcagd0wrvsv42x2mtn.png)
where, k is the constant of proportionality.
On comparison with general form,
![y=7x](https://img.qammunity.org/2019/formulas/mathematics/college/zircwgf6077mdgr787qglad2ro7eq8rll3.png)
here, k=7
Therefore, the constant of proportionality in the equation is 7.