14 votes 14 votes Which of the following functions describe the graph shown in the below figure? $y=\mid \mid x \mid + 1 \mid -2$ $y=\mid \mid x \mid - 1 \mid -1$ $y=\mid \mid x \mid + 1 \mid -1$ $y=\mid \mid x - 1 \mid -1 \mid$ Quantitative Aptitude gate2018-me-1 general-aptitude quantitative-aptitude functions absolute-value + – Arjun asked Feb 17, 2018 • edited Jun 3, 2019 by Sukanya Das Arjun 2.7k views answer comment Share Follow Migrated from GO Mechanical 4 years ago by Arjun See all 0 reply Please log in or register to add a comment.
Best answer 13 votes 13 votes Take $x = 1$ $y_A = 0, y_B = -1, y_C =1, y_D =1$ Only $y_B$ is correct. So, Option: B. Arjun answered Jun 2, 2019 Arjun comment Share Follow See all 2 Comments See all 2 2 Comments reply KUSHAGRA गुप्ता commented Jan 1, 2020 reply Follow Share @Arjun sir After getting $y_{b}=-1$ by putting $x=1$, how we are concluding that B is the option. 0 votes 0 votes Lakshman Bhaiya commented Jan 1, 2020 i edited by Lakshman Bhaiya Jan 1, 2020 reply Follow Share @Kushagra गुप्ता When we put $x = 1,$ then option $(B)$ given $ y = -1$ When we put $x = -1,$ then option $(B)$ given $ y = -1$ When we put $x = 0,$ then option $(B)$ given $ y = 0$ When we put $x = 2,$ then option $(B)$ given $ y = 0$ When we put $x = -2,$ then option $(B)$ given $ y = 0$ When we put $x = 3,$ then option $(B)$ given $ y = 1$ When we put $x = -3,$ then option $(B)$ given $ y = 1$ Only Option $(B)$ satisfies the given graph. 3 votes 3 votes Please log in or register to add a comment.
0 votes 0 votes To solve this question we can use elimination method That is by substituting the values from the graph into the equations and check wheather they satisfy the equation or not So 1st we can see that when x=0 then y=0 . So if we substitute x=0 in the equations then we should get y=0 From this we can eliminate option-A because it is giving y=-1 Next we can see that when x=-1 then y=-1. So if we substitue x=-1 then we can clearly see that only option-B gives y=-1 so correct answer is option-B SASIDHAR_1 answered Jan 20 SASIDHAR_1 comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes solve by taking x=1 then y=-1 A: 0 B: -1 C:1 D: 1 So B is answer Krishna Reddy kyp answered Mar 14 Krishna Reddy kyp comment Share Follow See all 0 reply Please log in or register to add a comment.