Question

Sophie borrowed some money from her friend in order to help buy a new video game system. Sophie agreed to pay back her friend $2 per week and originally borrowed $10. Make a table of values and then write an equation for L, commaL, in terms of t, commat, representing the amount Sophie owes her friend after tt weeks.
Number of Weeks Amount of Money Owed
00
11
22
33
Answer
Attempt 1 out of 2

Answer 1

Number of Weeks (t) — Amount Owed (L)
0 — $10
1 — $8
2 — $6
3 — $4

Equation: L = 10 − 2t

(If you only allow whole weeks, t = 0,1,2,... and L ≥ 0, so t ≤ 5.)