Exercises: Exercise 1: Identify whether the given situation represents a one-to-one function or hot 1. {(2,1), (1, 3), (4, 8), (5,7), (6, 9)} 2. {(-2,4), (–1, 1), (0,0), (1, 1), (2, 4)} 3. {(0,4), (1,5), (2, 6), (3,7), (n, n + 4)} 4. Sim cards to cellphone numbers 5. Height to age 6. Pairing of cars to plate numbers 7. 8. 9. 10.

Q: Which set of ordered pairs does not represent a function? O {({3, –5), (–3, –5), (-6, 2), (-4, 6)} O…

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Q: 1. Which of the following relations is a function? {(0, 0), (0, 1), (0, 2)} {(0, 0), (1, 1), (2, 4)}…

A: A relation R : X→Y to be a function, every element  x∈X should be related to a unique y∈Y. That…

Q: Which of the following relations is not a function? O [(1,2),(3,4),(5,6),(7,8)] O…

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Q: Refer to the functions f and g and evaluate the functions at x =-2. f = {(2, -1), (1, 1), (-4, -6),…

A: (f+g)(-2)=f(-2)+g(-2)  Substitute   f(-2)=-8  ,    g(-2)=-5in the above equation

Q: Find the interval in which the following function is decreasing: 3 -1 1 -1 -2 -3

A: A function f is said to be increasing  if f(x1)<f(x2) for x1<x2 and x1,x2 belonging to the…

Q: The one-to-one functions g and h are defined as follows. g(x) = -9x-2 h={(-2, 9), (0, 4), (3, 5),…

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Q: 3. Iff= {(-7, 1), (-5, 8), (3, 11), (5, -1)} and g = {(-6, 4), (-5, 3), (-1, 7), (5,5)}, what is f +…

A: Given that, f={(-7, 1), (-5, 8), (3, 11), (5, -1)} and g={(-6, 4), (-5, 3), (-1, 7), (5, 5)}