Answer:
![\frac12](https://img.qammunity.org/2023/formulas/mathematics/high-school/6mvfh0qg1ul9rrj1x39p2fo9l10at6ac0i.png)
Explanation:
Hello!
Equation of a Line:
![y = mx + b](https://img.qammunity.org/2023/formulas/mathematics/high-school/keg32d8l1q1bmgrzozsqjlg25iqjd0uxl8.png)
- y = output
- m = slope (constant of proportionality)
- x = input
- b = y-intercept
Given our equation:
![y = \frac12 x\\](https://img.qammunity.org/2023/formulas/mathematics/middle-school/wggkglydj69plq1fwjn1mleuyeryxr9z1i.png)
- slope = 1/2
- y-intercept = 0
Since the slope is the same as the constant of proportionality, the answer is 1/2.