2
f(x) = x + 2 x + 3.
answer the following three questions about the values f assigns using the instructions above. do not include an equals sign or the letter f in y
your answers, click the save answer button.
1.
what is the value of f(3)?
enter your unsimplified answer here: (3^2)+2(3)+3
enter your simplified answer here: 18
what is the value of f(4x)?
enter your unsimplified answer here:
enter your simplified answer here:
what is the value of f( x-3)?
enter your unsimplified answer here:
enter your simplified answer here:

  f(4x) = (4x)^2 +2(4x) +3 = 16x^2 +8x +3

  f(x-3) = (x-3)^2 +2(x-3) +3 = x^2 -4x +6

Step-by-step explanation:

Apparently, you want to evaluate ...

for f(x) = x^2 +2x +3.

Put the given argument values in place of the function variable and do the math.

f(4x)

f(4x) = (4x)^2 +2(4x) +3

  = 16x^2 +8x +3

__

f(x-3)

f(x-3) = (x-3)^2 +2(x-3) +3

  = x^2 -6x +9 +2x -6 +3 = x^2 -4x +6

32

step-by-step explanation:

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation: