What are the coefficients in the expression 4x + 5y - 3?

• A. 4, 5, -3
• B. 4, 5
• C. -3, 4, 5
• D. Only 4 and 5 are coefficients

Answer: (A)

In the expression 4x + 5y - 3, coefficients refer specifically to the numerical factors that multiply the variables in the expression. The term "4x" has a coefficient of 4, which is the number multiplying the variable x. Similarly, the term "5y" has a coefficient of 5, which is the number multiplying the variable y.

The third term, -3, is actually a constant and does not represent a coefficient of a variable. Therefore, it is correct to identify the coefficients in this expression as 4 and 5.

Since the correct choice lists all the numerical factors associated with the variables, which are 4 and 5, it correctly identifies the coefficients, with the constant -3 not being included as a coefficient of any variable.