Answer to Question #209905 in Discrete Mathematics for Sach

Question #209905

Draw graphs of the following functions.

(a)

f: R—>R defined by f(x) = x

(b)

f: R—>R defined by f(x) = |x|

(c)

f: R—>R defined by f(x) = x + 1

(d)

f: R—>R defined by f(x) = – 3x+4

(e)

f: R—>R defined by f(x) = Floor(x)

(f)

f: R—>R defined by f(x) = Ceiling(x)

(g)

f: R—>R defined by f(x) = x2

(h)

f: R—>R defined by f(x) = x3


1
Expert's answer
2021-07-20T04:24:21-0400

(a) f:RRf:R\rightarrow R defined by f(x)=xf(x) = x





(b) f:RRf:R\rightarrow R defined by f(x)=xf(x) = |x|





(c) f:RRf:R\rightarrow R defined by f(x)=x+1f(x) = x+1





(d) f:RRf:R\rightarrow R defined by f(x)=3x+4f(x) = -3x+4




(e) f:RRf:R\rightarrow R defined by f(x)=Floor(x)f(x) = Floor(x)


The floor function is the function that takes as input a real number x,x, and gives as output the greatest integer less than or equal to x,x, denoted Floor(x)Floor(x) or x.\lfloor x \rfloor.




(f) f:RRf:R\rightarrow R defined by f(x)=Ceiling(x)f(x) = Ceiling(x)


 The ceiling function is the function that takes as input a real number x,x, and gives as output the least integer greater than or equal to x,x, denoted Ceiling(x)Ceiling(x) or x.\lceil x\rceil.




(g) f:RRf:R\rightarrow R defined by f(x)=x2f(x) = x^2





(h) f:RRf:R\rightarrow R defined by f(x)=x3f(x) = x^3



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