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fenix001 [56]
3 years ago
10

Find the first 3 interations here: g(x)=-1|x-2|+3 if you have an initial value of 0.5

Mathematics
1 answer:
makvit [3.9K]3 years ago
6 0

Answer:

  • The first iteration = 1.5
  • The 2nd iteration = 2.5
  • The third iteration = 2.5

Step-by-step explanation:

Considering the function

  • g\left(x\right)=-1\:|\:x\:-\:2\:|\:+\:3
  • As the initial value = 0.5
  • In order to determine the next iterate, apply the function g(x) to the previous one.

DETERMINING FIRST ITERATION:

g\left(0.5\right)=-1\:|\:0.5\:-\:2\:|\:+\:3

          = -1 | 0.5 - 2 | + 3

          = -1 | -1.5 | + 3

\mathrm{Apply\:absolute\:rule}:\quad \left|-a\right|=a ; | -1.5 | =  1.5

          =-1.5+3  

          = 1.5

Thus, the first iteration = 1.5

DETERMINING SECOND ITERATION:

Putting the value of first iteration i.e. 1.5 into the original function to determine the 2nd iteration.

g\left(1.5\right)=-1\:|\:1.5\:-\:2\:|\:+\:3

as    1.5 - 2 = -0.5

\mathrm{Apply\:absolute\:rule}:\quad \left|-a\right|=a ;  | -0.5 | =  0.5

        =-0.5+3

        = 2.5

Thus, the 2nd iteration = 2.5

DETERMINING THIRD ITERATION:

Putting the value of second iteration i.e. 2.5 into the original function to determine the 2nd iteration.

g\left(2.5\right)=-1\:|\:2.5\:-\:2\:|\:+\:3

\mathrm{Apply\:absolute\:rule}:\quad \left|a\right|=a,\:a\ge 0

         =-0.5+3        as  2.5-2=0.5

         = 2.5

Thus, the third iteration = 2.5

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