One-to-One Function? Determine whether the func- tion is one-to-one. 19. f(x) = x* + 5 20. f(x) = x* + 5, 0sIs2 21. r(1) = 1 - 3, 0SIS5

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A: Given fx=x+3, gx=2x2-9 and hx=x2.  1) fx+gx=x+3+2x2-9fx+gx=2x2+x-6    2) fx·h(x)=x+3x2fx·h(x)=x3+3x2…

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Q: 4. Find the domain of the function f(x) = Write your answer using interval notation in the x – 7' |…

A: Given: The function, fx=4-xx-7   To find: The domain of the given function.

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