azarco7879
azarco7879 azarco7879
  • 02-11-2017
  • Mathematics
contestada

What is f(4) thanks

What is f4 thanks class=

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mathstudent55
mathstudent55 mathstudent55
  • 02-11-2017
f(4) is function notation that means the value of y when x = 4.

Replace x with 4 in the expression and evaluate the right side.

f(x) = 3x - 15

f(4) = 3(4) - 15

f(4) = 12 - 15

f(4) = -3
Answer Link
Haloom
Haloom Haloom
  • 02-11-2017
hi
f(4) means x=4
As in question it is written that
3x- 15
substitute the value of x as 4. ( bcz x =4)
3 (4) - 15
= 12 - 15
= -3
Therefore the answer is option D.
Answer Link

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