Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it. A. a student writes an explicit formula to represent the value of the computer in n years below. What is the student's error? explain.
B. Use your corrections from part A to find the value of the computer at the beginning of the 6th year.

an=1250(-10)^n-1

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

d i think

step-by-step explanation:

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316