Question

The function c=1.50(n-2)+5.50 reresents the cost c in dollars of printing n invitations. Which of the following is not true?

A) each invitation costs $5.50 to print.
B) For each additional invitation, it costs an extra $1.50 to print.
C) One cannot print just one invitation.
D) The cost depends on the number of invitations printed.

Answer 1

By looking at the relationships of the variables, coefficients and constants in the equation given, the correct answer would definitely be option A. The statement saying that printing each of the invitation would only cost $5.50 is not true. This value is a constant and represents an additional cost to the total cost in printing the invitations.

Answer 2

For this case we have the following equation:
 $c = 1.50 (n-2) +5.50$
 Where,
 n: number of invitations:
 c: cost in dollars
 We note that the slope of the line for this case is:
 $m = 1.50$
 The slope represents the cost of printing each of the invitations.
 Therefore, it is false that the cost of printing each invitation is $ 5.50
 Answer:
 the following is not true:
 A) each invitation costs $ 5.50 to print.