Ask
your own question, for FREE!
Mathematics
34 Online
OpenStudy (anonymous):
Let f(x)=x^2+2x-2 and g(x)=2-3x. Find the following: a.) f(-1) b.) g(-3) c.) f(a+2)
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (lalaly):
f(-1) =(-1)^2 +2(-1)-2 = 1-2-2 = -3 g(-3) = 2-3(3) = 2-9 = -7 f(a+2) = (a+2)^2 +2(a+2)-2
OpenStudy (anonymous):
thank you @lalaly :)
OpenStudy (anonymous):
also note that \[f(a+h)=(a+2)^2+2(a+2)-2\] \[=a^2+4a+4+2a+4-2\] \[=a^2+6a+6\]
OpenStudy (lalaly):
yesss:D
OpenStudy (anonymous):
Okay, thank you @satellite :)
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
lala, i have a question
OpenStudy (anonymous):
g(-3) = 2-3(3) = 2-9 = -7 isn't it supposed to be 11? because 2-3(-3) = 2+9
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Unknownuser8009:
I have 12 days till my birthday... thoughts on what should I do?
5 minutes ago
0 Replies
0 Medals
fwval:
who is being affected by the santa ana winds? is it causing a massive problem for
3 hours ago
0 Replies
0 Medals
lanaa:
positive a^3+b^3=(a+b)(a^2-ab+b^2) negative a^3-b^3=(a-b)(a^2+ab+b^2) 4.) x^3+1000=0 (factor the cubic) (5 and 6 factor the polynomial) 5.
7 hours ago
21 Replies
0 Medals