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MATH 210-Week 7 practice quiz.

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Question;MATH 210-Week 7 practice quiz.Q1;Compute the values indicated. Note;that if the domain of these functions is |Z+, then each function is the;explicit formula for an infinite sequence. Thus sequences can be viewed as a;special type of function.;g(n)= 5-2n;g(14)=?;A.-23;B.-3;C.-41;D.-253;Q2;Use the universal set U=;{a,b,c,..... y, z} and the characteristic function for the specified;subset to compute the requested function value. [2.78];A.-3;B.2;C.14;D.-18;Q3;Use the universal set U=;{a,b,c,..... y, z} and the characteristic function for the specified subset to;compute the requested function value. [-17.3];A.-18;B.2;C.14;D.21;Q4;Let A= {a,b,c,d} and B=;{1,2,3}. Determine whether the relation R from A to B is a;function.R= {(a,1), (b,1), (c,1), (d,1)};True;False;Q5;In each part, sets A and;B and a function from A to B;are given. Determine whether the function is one to one or onto (or both or;neither). A=B=|Z, f(a)= a-1;A.onto;B.one to one;C.both;D.neither;Q6;Let R and S be the;given relations from A to B. Compute.A={a,b,c},B= {1,2,3}R= {(a,1), (b,1), (c,2), (c,3)}S= {(a,1), (a,2), (b,1), (b,2)};A.{(1,a), (1,b), (2,b)};B.{(1,a), (2,a), (1,b), (2,b)};C.{(1,a), (2,a), (2,b)};D.{(1,a), (2,a), (1,b)};Q7;Let R and S be the;given relations from A to B. Compute.A={a,b,c},B= {1,2,3}R= {(a,1), (b,1), (c,2), (c,3)}S= {(a,1), (a,2), (b,1), (b,2)};A.{(a,1), (a,2),(b,2), (c,2);(c,3)};B.{(a,2), (a,3),(b,3), (c,1)};C.{(1,a), (1,b), (2,b)};D.{(a,1), (b,1)};Q8;Let;A={1,2,3} and B={1,2,3,4}. LetR;and S be the relations from Ato Bwhose matrices are;given. Compute.;A.{(1,1), (3,1), (4,2), (1,3);(3,3)};B.{(1,1),(4,2), (1,3), (2,3);(3,3)};C.{(1,1), (3,1), (4,2), (1,3);(2,3), (3,3)};D.{(1,1), (3,1),(1,3), (2,3);(3,3)};Q9;Let R and S be the given relations;from A to B. Compute.A={a,b,c}, B= {1,2,3}R= {(a,1), (b,1), (c,2), (c,3)}S= {(a,1), (a,2), (b,1), (b,2)};A.{(a,2), (a,3), (b,2), (b,3);(c,1)};B.{(a,2), (b,2), (b,3), (c,1)};C.{(a,2), (a,3), (b,2), (c,1)};D.{(a,2), (a,3), (b,3), (c,1)};Q10;Compute the values indicated. Note;that if the domain of these functions is |Z+, then each function is the;explicit formula for an infinite sequence. Thus sequences can be viewed as a;special type of function.;g(n)= 5-2n;g(129)=?;A.-3;B.-253;C.-41;D.26

 

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