Question

For the expression 2x + 7

Which one is true ?
(i) Variable = x, Constant = 2
(ii) Variable =x, Constant =7
(iii) Variable = 7, Constant =x
Select one:
a. (i) Only
b. (i) and (ii)
c. (ii) Only
d. (i), (ii) and (iii)

Answer 1

(C)

Explanation:

A constant is a number by itself and a Variable is a letter. ex: 7+x

A number next to a variable is a called a coefficient. Example: 2x