Final answer:
The expression '7x + 16' is an algebraic expression representing a line in mathematics, with a slope of 7 and y-intercept of 16, commonly used in the context of algebra.
Step-by-step explanation:
The expression '7x + 16' is a linear algebraic expression. It represents a line with a slope of 7 and a y-intercept of 16 on a coordinate plane. Algebra is a branch of mathematics that deals with symbols and the rules for manipulating these symbols. In this case, 'x' is the variable or the unknown that we can solve for when we have an equation. If '7x + 16' were part of an equation, such as '7x + 16 = 0', we could solve for 'x' by isolating the variable. The expression does not include an equal sign, so it isn't an equation, but just a part of one that could represent either the total cost in terms of a unit price times quantity plus a fixed cost, the growth of a population over time, or numerous other contexts in algebra.