Question

• What are the differences among expressions, equations, and functions? Provide examples of each.

Answer 1

'2x-5y+5' is an expression
whereas ' 2x-5y+5 = 0' is an equation.
A function, on the other hand , is a completely different concept.
An example could be f(x)=x^2

Answer 2

An expression just shows you a set of operations with no equivalence.
Such as a+b.
An equation shows you sets of operations with an equivalence.
Such as a+b=c.
And a function take an independent variable (x) and maps it to a single value of y.
Such as f(x)=x+2