Section 4.4 Functions 5. Let S = {1,2,3,4,5} and T = {6,7,8,9). Let f: S ? T whe

a) {1,2,3,4,5} b) {6,7,8} c) {6,7,8,9} d) 6 e) {3,4} f)no g)no

ID: 2962216 • Letter: S

Question

Section 4.4 Functions

5. Let S = {1,2,3,4,5} and T = {6,7,8,9). Let f: S ? T where f is defined by {(1,6), (2,6), (3,7), (4,7), (5,8)}.

a. What is the domain?____________________________________

b. What is the range?______________________________________

c. What is the codomain?___________________________________

d. What is the image of 2?__________________________________

e. What are the preimages of 7?_____________________________

f. Is this an onto function?_______

g. Is this a one-to-one function?_________

a) {1,2,3,4,5}

b) {6,7,8}

c) {6,7,8,9}

d) 6

e) {3,4}

f)no

g)no

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