emkatpeterson emkatpeterson
  • 24-10-2018
  • Mathematics
contestada

What is F(-5) if f(x)= 2x-1+10 A-21 B-19 C- -1 D- -21

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 24-10-2018

f(x)= 2x-1+10

f(-5) = 2(-5) -1+10

     = -10 -1+10

-11+10

-1

Choice C

 

Answer Link
fatimakincsem
fatimakincsem fatimakincsem
  • 24-10-2018

Answer: -1 option C

Solution:

f(x)= 2x-1+10  

Step 1: replace the all the x in the equation with the function defined that is F(-5)

So the equation would be,

F(-5) = 2 ( -5 ) - 1 + 10

Step 2: F(-5) = - 10 - 1 + 10     (simplify the equation -10 and +10 cancels out as they equal zero)

F(-5) = -1  

Hope the solution above helps to understand the question! :)

Answer Link

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