Final answer:
The equation 'x³ = 7 (y-1)' can be described in a sentence as "The cube of x is seven times the quantity of y minus one," which represents an exponential relationship between x and y that can be graphed on a coordinate plane.
Step-by-step explanation:
The given mathematical equation, x³ = 7 (y-1), expresses a relationship between two variables, x and y. This is an example of an exponential equation, where x is raised to the power of three. On a coordinate plane, this equation would represent a set of points where the cube of the x-coordinate is equal to seven times the y-coordinate minus seven. In a sentence, it could be stated as "The cube of x is seven times the quantity of y minus one." If we were to graph this relation, it would not be a straight line, indicating that it's not a linear equation but an exponential one.