Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

Let f(x) = -4x + 7 and g(x) = 10x - 6. Find f(g(x))

OpenStudy (anonymous):

for this one i found the first number wich is -40 but not the last one

OpenStudy (anonymous):

so you got g(x) = -40?

OpenStudy (anonymous):

not i got -40x-17 but thats not an option

OpenStudy (anonymous):

okay so i remember doing this im actually doing this right now in algebra 2 so give me a sec

OpenStudy (anonymous):

mee to florida vertual school

OpenStudy (anonymous):

yeah same

OpenStudy (anonymous):

your answer is incorrect btw

OpenStudy (anonymous):

i know but i dont know what i did wrong

OpenStudy (anonymous):

okay show me the steps of getting the answer and ill help you then ill show you the steps because i know my answer is 100% right because i got a 100% on the test with the same question

OpenStudy (anonymous):

4(10x-6)+7

OpenStudy (anonymous):

your on the right track now actually the 4 is supposed to be a "- " not a positive thats what your doing wrong so far

OpenStudy (anonymous):

it is i just forgot to type it

OpenStudy (anonymous):

okay so we actually got f(g(x)) = -4(10x - 6) + 7 now can you multiply the -4 with the 10x and the -6 please and tell me how the function will look like

OpenStudy (anonymous):

do you know what i mean?

OpenStudy (anonymous):

hold on im dong it right now

OpenStudy (anonymous):

k

OpenStudy (anonymous):

i got -40x+24+7

OpenStudy (anonymous):

yes good job now add like terms and voila

OpenStudy (anonymous):

-40+31 than you !!!

OpenStudy (anonymous):

yup im glad you are able to understand how to do it :)

OpenStudy (anonymous):

actually its -40x + 31 you forgot to write the x

OpenStudy (anonymous):

feel free to tag me in other questions

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!