raiders88
  • raiders88
evaluate the function for x=2: f(x) = 7x-5
Mathematics
jamiebookeater
  • jamiebookeater
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texaschic101
  • texaschic101
f(x) = 7x - 5 f(2) = 7(2) - 5 f(2) = 14 - 5 f(2) = 9 understand ?
raiders88
  • raiders88
uh huh
texaschic101
  • texaschic101
basically, your just subbing in 2 for x

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raiders88
  • raiders88
i have two more if u will help
texaschic101
  • texaschic101
I can try...but I am not the best at these...just the simple ones
raiders88
  • raiders88
candy is on sale for $0.75 each. you have a coupon for $0.25 off your total purchase. write a function rule for the cost of n pieces of candy
texaschic101
  • texaschic101
f(n) = 0.75n - 0.25
raiders88
  • raiders88
k last one
raiders88
  • raiders88
the ordered pairs (0,0),(2,4), (4,8), and (6,12) represent a function. what is the rule for this function
texaschic101
  • texaschic101
Not too sure.....all I know is the x terms add 2 and the y terms add 4...but I do not know how to write this as a function...sorry
raiders88
  • raiders88
its ok
raiders88
  • raiders88

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