Final answer:
The question asks for a linear equation representing the depth of a pipe given points relative to a spigot, but lacks the necessary depth measurements to provide an accurate answer.
Step-by-step explanation:
The question asks for the linear equation that represents the relationship between the depth of a pipe (y) at a certain number of feet (x) to the right of the spigot. To solve this, we would need the values for depth at two specific points, which are not provided in the question. However, according to the information given, each provided equation (Option A, B, C, and D) is a linear equation of the general form y = mx + b, where m is the slope and b is the y-intercept. Without additional information such as the depth at known distances from the spigot, we cannot determine which of these equations is correct. To select the right equation, you should utilize the depth measurements at the points mentioned (two meters to the left and four meters to the right of the spigot) to calculate the slope (change in depth over change in distance) and then find the corresponding y-intercept.