1. Which of the following is a variable? A. 1 B. y C. 2 D. 5 2. Which is constant in this expression? A. π B. r C. π & 2 D. π & r 3. Which of the following can be used as variables? A. a B. c C. x D. All of these 4. Any symbol representing one fixed value that does not change is called______________. A. equation B. constant C. variable D. expression 5. What do you call to the letters or symbols that represents a number? A. equation B. constant c. variable D. expression
B. Directions: Determine the constant(s) and the variable(s) in each algebraic expression.
