Question

If f(x)=3[x-2],what is f(5.9)? 9 10 11 12

Answer 1

f(x)=3[x-2]
So, f(5.9) = ?
f(5.9) = 3(5.9 - 2)
=3(3.9)
=11.7 = 12
Thus, the answer is 12.

Answer 2

Answer: 12

Step-by-step explanation:

We know that , the ceiling function y = [x] is also known as the least integer function that gives the smallest integer greater than or equal to x.

For example : For x= 1.5

y = [1.5] =2

For x= 3.64

y = ⌊3.64⌋=4

The given function : $f(x)=3[x-2]$

Then, for x= 5.9 , we have

$f(5.9)=3[5.9-2]\\\\ f(5.9)=3[3.9]\\\\ f(5.9)=3(4)=12$ [since [3.9]=4 (least integer function)]

Therefore, the value of f(5.9) is 12