To determine if the given points are on the graph of the function, substitute the x- coordinate into the equation and if the value is equal to the y-coordinate then it is on the graph
(0, - 16 ) : f(0) = 0 + 1 = 1 ≠ - 16 → No
(- 1, - 1) : f(-1) = 16 + 1 = 17 ≠ - 1 → No
(1, 256 ) : f(1) = - 16 + 1 = - 15 ≠ 256 → No
Answer:
1) (D)
2) (B)
3) (C)
Step-by-step explanation:
1) Amount borrowed = $1380 (P)
APR =13% or 0.13 (R)
Time = 15 months (T) = 15/12
Interest amount = 
= 
= $224.25
Total amount = 1380+224.25
= $1604.25
Monthly payment = 1604.25/15 = $106.95 (D)
2) Amount borrowed = $2240
APR = 15% or 0.15
Time = 18 months
Interest =
= 
= $504 (B)
3) Amount borrowed = $5500
APR = 11.5% or 0.115
Time = 5 years
n= 12 (compounded monthly)
M = 
= 
= $120.95 (C)
Its D. -18 hope this helps :D