4. On a math test, Sarah has to identify all the coefficients and constants

of the expression 4+n + 7m. Sarah identifies the only coefficient as 7 and

the only constant as 4.

a. Identify all the coefficients of the expression.

TOTAL

b. Identify all the constants of the expression.

c. What error did Sarah likely make?

5 + 4.10)

Step-by-step explanation:

4 + n + 7m

constants are just the numbers with no variables (letters)

so the constant is 4

coefficients are numbers multiplied by variables (letters)

so the coefficients are : 7 and 1

the error sarah made is forgetting the coefficient of n ... because even if it is not written, n is the same as 1n ... so basically, there is a coefficient for EVERY variable, even if its not written.