How can a 4-in-12 slope be expressed?

A 4-in-12 slope indicates a rise of 4 units for every 12 units of horizontal run. This expression defines the steepness or incline of a roof, ramp, or similar structure. The first number represents the vertical rise, while the second number represents the horizontal distance.

In this case, the relationship is written as a ratio of rise to run, which gives the slope its proper expression. Thus, when it states 4-in-12, the correct expression is simply written as 4:12. This indicates that for every 12 units traveled horizontally, there is a 4-unit increase in height. This is essential for understanding various applications, such as roofing, where proper slope is important for drainage and structural integrity.

The other options do not accurately represent the intended ratio of vertical rise to horizontal run, leading to confusion regarding the steepness of the slope. Therefore, 4:12 is the appropriate choice.