To determine the exponent and coefficient of the expression [tex]\(-2a\)[/tex], we analyze the expression:
1. The expression [tex]\(-2a\)[/tex] consists of a coefficient and a variable [tex]\(a\)[/tex].
2. The coefficient is the numerical part that multiplies the variable [tex]\(a\)[/tex]. Here, the numerical part multiplying [tex]\(a\)[/tex] is [tex]\(-2\)[/tex].
3. The exponent refers to the power to which the variable [tex]\(a\)[/tex] is raised. Since [tex]\(a\)[/tex] is not explicitly raised to any power other than the first power, the implied exponent is 1.
Thus, for the expression [tex]\(-2a\)[/tex]:
- The exponent of [tex]\(a\)[/tex] is 1.
- The coefficient is [tex]\(-2\)[/tex].
Therefore, the correct answer is:
The exponent is 1 and the coefficient is -2.