Ask your own question, for FREE!
Mathematics 24 Online
OpenStudy (anonymous):

Given the function f(x) = −2x + 4, find x if f(x) = 20. −8 −36 44 −12

OpenStudy (anonymous):

So first replace the f(x) with 20. How do you solve an equation like this?

hero (hero):

Hint: y = f(x) Therefore, y = -2x + 4 y = 20 y = y 20 = -2x + 4 Continue solving for x

OpenStudy (anonymous):

-8??

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!
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!