Question

Which of the following shows the table representation of the exponential function f(x)=5*2^x

0-5
1-7
2-9
3-11

0-1
1-10
2-100
3-1000

0-10
1-20
2-40
3-60

0-5
1-10
2-20
3-40

Answer 1

The correct option is 4.

Explanation:

The given function is

`f(x)=5(2)^x`

Put x=0,

`f(0)=5(2)^0=5* 1=5`

Put x=1,

`f(1)=5(2)^1=5* 2=10`

Put x=2,

`f(2)=5(2)^2=5* 4=20`

Put x=3,

`f(3)=5(2)^3=5* 8=40`

Only table 4 represents the correct value of the given function, therefore the correct option is 4.