Question

If f(x) = x + | x – 1| then the value of f(-5) is (a) -1 (b) 1 (c) 11 (d) none of these​

Answer 1

Answer:

noneof them

Step-by-step explanation:

f(-5)=-5+(-5-1)

= -5-6

= -11

Answer 2

Given

we have given function f(x)= x+|x-1|

To find

we have to find f(-5)

$\sf\huge {\underline{\underline{{Solution}}}}$

(b) 1

We have given a function f(x)= x+|x-1|

Note : Any change in f(x) will cause a change in the function.

Now ,our function is f(x) and we have to find f(-5) now compare the coefficient of f(x) with f(-5) , we find x=-5

So,we have to find the value of f(x) at x=-5

at x= -5

=>f(-5)= -5+|-5-1|

=>f(-5)= -5+|-6|

=>f(-5)=-5+6( + 6 as -ve value comes out from mode becomes +ve)

=>f(-5)= 1

Therefore ,f(-5) is 1

Extra information=>

➥The above function is a linear equation as highest power is 1.

➥f(x)=y here ,f is the function and x is an input which gives output say 'y'.

➥We can find infinite number of output of f(x) by putting infinite number of values into f(x).