Solutions to Practice #2
For each collection of symbols below, determine if it is an
algebraic term, expression, equation, or none of these. Explain
Term This is a product of a constant, 7.5, and
the variables x and y.
- 19p + 20q
Expression Here we have the addition of two terms,
19p and 20q.
- ½ xy
Term this is a product of a constant, ½,
and the variables x and y.
- ½ xy = q
Equation This is two expressions set equal to one
another. Each expression consists of a single term.
- 10xy = 15x4y 9
Equation Here we have two expressions set equal
to one another. The expression on the left side of the equation
is a single term, 10xy. The expression on the right side
of the equation contains two terms, 15x4y
- 10 + k 10q ¸
Expression This expression contains 4 terms, 10,
k, 10q, and 12. The operations of addition,
subtraction, and division are present in this expression.
The practices in this unit do not have detailed solutions. If
you got each item on this practice correct, move on to the next
unit. If you had any problems with this practice, you may need
more review than is offered in this tutorial. In this case you
should contact your instructor for where to find help.