Problema Solution
sean is buying a new dvd player and speaker for $315 the store offer him interest free payment plan that allows him to pay in monthly installments of $25
A)use N to stand for a numbers of payments and A for the amount still owed write a equation for calculating A for any value of N.
B)use your equation to make a table and a graph showing the relationship between N and A.
Answer provided by our tutors
(A) The equation is
A = $315 - $25*N
(B)
The table is below:
N A
1 $290
2 $265
3 $240
4 $215
5 $190
6 $165
7 $140
8 $115
9 $90
10 $65
11 $40
12 $15
To draw the graph, we can draw a line through any of the two points above, for example, (1,290) and (2,265)