Mathematics
tajahma7803
36

CAN ANYONE HELP WITH THESE PLEASE...? (EASY 21 POINTS) If f(x) = 2x and g(x) = 2x, then what is (g ° f)(x)? Find f-1 (x) when f(x) = 2x + 6 = ? Find (f ° g)(x) when f(x) = 4x and g(x) = 6x + 6 =? Find (f ° g)(2) when f(x) = x + 4 and g(x) = 5x =? Find (f ° g)(x) when f(x) = 4x and g(x) = x + 1 = ? Find (f ° g)(x) when f(x) = -x - 3 and g(x) = -5x + 10 =? If f(x)=2x + 3 and g(x)=5x-2, find (f ° g)(4) -? If f(x)= x2 + 2 and g(x)= 2x-1, find (f ° g)(5) =? Find the inverse of the function f(x)= (x + 2)3 =?

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(2) Answers
gothicwinter

21 21 21 21 21 2 1 21 2 12 1 2 1

neicye

1) 2x * 2x = 4x^2 2) 2(-1)+6 = 4 3) (4x)(6x+6) = 24x^2 + 4x 4) ((6)+4)(5(6)) = 300 5) 4x(x+1)= 4x^2+4x 6) (-x-3)(-5x+10) = 5x^2+5x-30 7) (2(4)+3)(5(4)-2) = 198 8) ((5)^2+2)(2(5)-1)=243 9) 

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