Mark M. answered • 04/22/16
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Mathematics Teacher - NCLB Highly Qualified
f(x) = -7x + 6
g(x) = -5x2 - 9x - 3
(f o g)(x) = -7(-5x2 - 9x - 3) + 6
(f o g)(x) = 35x2 + 63x + 21 + 6
(f o g)(x) = 35x2 + 53x + 27
(f o g)(9) = 35(9)2 + 53(9) + 27
(f o g)(9) = 2835 + 477 + 27
(f o g)(9) = 3339
Mark M.
Thank you for the correction.
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04/22/16
Agustin R.
g(x) = -5x2 - 9x - 3
(f o g)(x) = -7(-5x2 - 9x - 3) + 6
(f o g)(x) = 35x2 + 63x + 21 + 6
(f o g)(x) = 35x2 + 53x 63x + 27
(f o g)(9) = 35(9)2 + 53(9) 63(9)+ 27
(f o g)(9) = 2835 + 477 567+ 27
(f o g)(9) = 3339 3,429
04/22/16