Sum : 
Term : 1,
and 
Product :
and 
Factor : 5 and x, 3 and y, 9 and 5x+1
Quotient : 
Coefficient : 5 is the coefficient of x and 3 is the coefficient of y.
Explanation:
The expression is 
Sum: Sum is the result of addition of terms.
Thus, from the expression,
Sum = 
Term : A term is a single number or a variable or a number multiplied with a variable.
Thus, from the expression,
Term = 1,
and 
Product : Product is the result of multiplication of numbers.
Thus, from the expression,
Product =
and 
Factor : The numbers that are multiplied is called a factor.
Thus, from the expression,
Factor = 5 and x, 3 and y, 9 and 5x+1
Quotient : Quotient is the result of dividing two numbers or variables.
Thus, the given whole expression is a quotient.
Hence, Quotient = 
Coefficient : Coefficient of a variable is a number multiplied with a variable.
Thus, from the expression,
Coefficient : 5 is the coefficient of x and 3 is the coefficient of y.