Seudónimo Seudónimo
  • 11-05-2017
  • Mathematics
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PLEASE HELP ME WITH THIS QUESTION!

PLEASE HELP ME WITH THIS QUESTION class=

Respuesta :

DC44 DC44
  • 11-05-2017
Solution:

We have: 
f(x) = √x
g(x) = 7x + b
y = f(g(x)), Given point on the graph (x, y) = (4, 6) 

Use: f(x) = √x
f(g(x)) = √(g(x))
y = √(7x + b),  x = 4, y = 6

6 = √(7(4) + b)
6² = (7(4) + b)
36 = 28 + b
36 - 28 = b
8 = b

b = 8
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