SOLUTION: Can you help me answer this? F(x)={{{3x^2+2}}}, if x<=(less than or equal to)-1 {{{-x-4}}}, if x>-1 The question is: Evaluate the function for the given value of X. f(-2)

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Can you help me answer this? F(x)={{{3x^2+2}}}, if x<=(less than or equal to)-1 {{{-x-4}}}, if x>-1 The question is: Evaluate the function for the given value of X. f(-2)      Log On


   

Question 644341: Can you help me answer this?
F(x)=3x%5E2%2B2, if x<=(less than or equal to)-1
-x-4, if x>-1
The question is: Evaluate the function for the given value of X.
f(-2) is the value of X.
Im not sure of this is System of Equations but i think its very close to it.
Found 2 solutions by jim_thompson5910, MathLover1:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f(-2) means find f(x) when x = -2

x = -2 means that f(x) = 3x^2 + 2 since this is the first piece (when x <= -1)

So...

f(x) = 3x^2 + 2

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

f(-2) = 3(4) + 2

f(-2) = 12 + 2

f(-2) = 14

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=3x%5E2%2B2, if x%3C=-1....I guess you are given f%28-2%29 is the value of x because -2%3C-1
f%28-2%29=3%28-2%29%5E2%2B2

f%28-2%29=3%2A4%2B2

f%28-2%29=12%2B2

f%28-2%29=14


f%28x%29=-x-4, if x%3E-1...........let's take x=0
f%280%29=-0-4
f%280%29=-4