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Please help me with my algebra would "suppose f(x) = 3x - 8, g (x) = x^2 + 2, nd h(x) = 10 - 2x

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evaluate each of the following:? thanks? 

 
2) g(-2)
3). g(6)
4). h(10) - f(3)
5). h(x^2) f(-1) + g(0) .

 

asked Aug 28, 2014 in ALGEBRA 1 by anonymous

1 Answer

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Given   f(x) = 3x - 8

          g (x) = x² + 2

           h(x) = 10 - 2x

 

1).g(-2 )= (-2 )² + 3

            = 4 + 3

            = 7

2).g (6) = ( 6 )² + 3

             = 36 +3

            = 39

3). h(10) - f(3) = { 10 - 2 (10 ) } - { 3(3) - 8 }

                     = - 10 - 1

                   = -11

4).h(x²) f(-1) + g(0) = {10 - 2 (x²) } { 3 ( -1 ) - 8 } + 0² + 2

                             = ( 10 - 2x² ) ( -11 ) + 2

                             = 22 x²  -110 + 2

                            = 22 x²  - 108

 

answered Aug 28, 2014 by friend Mentor

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