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27. Determine whether each relation represents a function. a) {(4,9).(7,21).(10,21)} b) {(0,8).(0,10).(4,12)} c) y=(x+7)' - 4

27. Determine whether each relation represents a function. a) {(4,9).(7,21).(10,21)} b) {(0,8).(0,10).(4,12)} c) y=(x+7)' - 4

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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27. Determine whether each relation represents a function. a) {(4,9).(7,21).(10,21)} b) {(0,8).(0,10).(4,12)} c) y=(x+7)' -4 e) y= Vx h) d) x² + y? = 85 f) x =12 g)
Transcribed Image Text:27. Determine whether each relation represents a function. a) {(4,9).(7,21).(10,21)} b) {(0,8).(0,10).(4,12)} c) y=(x+7)' -4 e) y= Vx h) d) x² + y? = 85 f) x =12 g)
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