Question

Match List I with List II and select the correct answer using the code given below the lists:

List I	List II
(A) $f\left(x\right)=\cos x$	$1.$ The graph cuts y-axis in infinite number of points
(B) $f\left(x\right)=lnx$	$2.$ The graph cut x-axis in two points.
(C) $f\left(x\right)=x^2-5x+4$	$3.$ The graph cuts y-axis in only one point
(D) $f\left(x\right)=e^x$	$4.$ The graph cuts x-axis in only one point
	$5.$ The graph cuts x-axis in infinite number of points

• A. $1,4,5,3$
• B. $1,3,5,4$
• C. $5,4,2,3$
• D. $5,3,2,4$

Answer 1

Answer: (C)

$5,4,2,3$

(A) Graph of $f\left(x\right)=\cos x$ cuts x-axis at infinite number of points. $(5$ of List II)
(B) Graphs of $f\left(x\right)=lnx$ cuts x-axis in only one point. $(4$ of list II)
(C) Graph of $f\left(x\right)=x^2-5x+4$ cuts x axis in two points $(2$ of list II)
(D) Graph of $f\left(x\right)=e^x$ cuts y-axis in only one point. $(3$ of list II).