Question

Input: 0 1 2 3
Output: 5.5 4.2 3.2 2.2
What's the relationship ?

Answer 1

@AccessDenied can u help me please ?

Answer 2

when Input increase, output will decrease.

Answer 3

ya seems like linearly decreasing.

Answer 4

it is not linear..

Answer 5

output=-1.3(input)+5.5

Answer 6

linear decreasing

Answer 7

yes

Answer 8

@cinar it looks linear decreasing , if one value is a lil diff doesnt mean its not linear.

Answer 9

no for first two values

Answer 10

There is no formula available.

It is not an arithmetric progression because the distance between values is not constant
It is not a geometric progression between the ratio of consecutive values is not constant

Answer 11

y=-0.05x^3+0.3x^2-1.55x+5.5

Answer 12

it's a smiple question .. why making so much complicated.

Answer 13

why .. doesn't it look linear?

Answer 14

assume that f(x)=ax^3+bx^2+cx+d
f(0)=5.5=d
f(1)=a+b+c+5.5=4.2
f(2)=8a+4b+2c+5.5=3.2
f(3)=27a+9b+3c+5.5=2.2

Answer 15

a+b+c=-1.3
8a+4b+2c=-2.3
27a+9b+3c=-3.3

after solve this eq. system you'll get a,b,c coeff.