SOLUTION: Evaluate the function. (Round your answer to four decimal places.) f(x) = −5e^x − 1, for f(−2) *I subsitiuted (-2) for x, which transformed the equation into

Algebra ->  Expressions-with-variables -> SOLUTION: Evaluate the function. (Round your answer to four decimal places.) f(x) = −5e^x − 1, for f(−2) *I subsitiuted (-2) for x, which transformed the equation into      Log On


   



Question 1128799: Evaluate the function. (Round your answer to four decimal places.)
f(x) = −5e^x − 1, for f(−2)
*I subsitiuted (-2) for x, which transformed the equation into -5^(-2)-1. The answer incorrectly resulted in .0080. Can someone demonstrate the correct method that should be used. thanks

Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
f(-2)=-5*e^(-2)-1
e^(-2)=1/e^2=0.1353
-5e^(-2)-1=-1.6767, rounding at the end

Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!

Evaluate the function. (Round your answer to four decimal places.)
f(x) = −5e^x − 1, for f(−2)
*I subsitiuted (-2) for x, which transformed the equation into -5^(-2)-1. The answer incorrectly resulted in .0080. Can someone demonstrate the correct method that should be used. thanks
You missed "e." This SYMBOL will be on some calculators, and is approximately 2.718281828.
Instead of what you have, it should be: