Question

1. The function f(x)=9x+8.; x in R is an increasing function.
(a) True
(b) False
(c) Can't say
(d) Partially True/False​

Answer 1

Answer:

False

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Answer 2

Given : The function f(x)=9x+8.; x ∈ R  

To Find : The function f(x) is an increasing function.

(a) True

(b) False

(c) Can't say

(d) Partially True/False​

Solution:

f(x)=9x+8.

take derivative

f'(x) = 9

9 is positive

Hence function is increasing

So correct answer is true

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