Mathematics MCQs

Functions & Relations Questions with solutions MCQs

1. Consider the following pairs. a. F = {(x,y) ? R?R : y = x^2 ? 2} b. F = {(x,y) ? R?R : x^2 + y^2 = 25} c. F = {(x,y) ? R?R : y = 2x + 1} d. F = {(x,y) ? R?R : y = x^2} Match with: 1. F?F = {(x,z) ? R?R : z = 4x + 3} 2. F increasing on (0, ?), but not on R 3. F is one-one but not onto 4. Range of F = [?2, ?) 5. F is not a function Which of the pairs given above is/are correctly matched?

A

a-1, b-2, c-3, d-5

B

a-2, b-1, c-5, d-4

C

a-3, b-4, c-1, d-2

D

a-4, b-5, c-1, d-2

Functions & Relations Account Ast. 2024
Correct Answer : D
Explanation :

a: y=x^2?2 ? Range [?2,?) ? 4. b: Circle is not a function ? 5. c: y=2x+1 ? F?F: y=4x+3 ? 1. d: y=x^2 increasing only on (0,?) ? 2.

Correct Answered :

Wrong Answered :

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