Question

3. Sarah was asked to identify all coefficients and constants of the

expression 4+n + 7m. She said that 4 is a constant, and 7 is a coefficient.
What is her error?
a. She did not include the constant 1.
b. She said 4 is a constant. It is actually a coefficient.
c. She did not include the coefficient 1.
d. She said 7 is a coefficient. It is actually a constant.
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Answer 1

The error is that Sarah incorrectly identified a constant as a coefficient in the expression.

Step-by-step explanation:

Sarah's error is that she said 7 is a coefficient when it is actually a constant. In the expression 4+n + 7m, the constant is 4 and the coefficient is 7. A constant is a value that stays the same and does not depend on any variables, while a coefficient is a number that multiplies a variable.

Learn more about Identifying coefficients and constants in an expression