Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (anonymous):

am i correct? its a negative but the degree is 3

OpenStudy (anonymous):

OpenStudy (jbo11):

well you can prove you are right by putting in a test number for x. For example 4, and then find y and see if it fits the graph

OpenStudy (anonymous):

so you mean : f(x) = -1/2 (4)^3?

OpenStudy (jbo11):

yes, then solve, so that could also look like y=-1/2(4)^3 and solve for y. and the best way to prove your answer is right, do one more so then you check two points rather than one

OpenStudy (jbo11):

oh and i see the graph is a bit small so if you must, try small numbers like 1 and 2, works the same

OpenStudy (anonymous):

ok: fx = -1/2(2)^3 fx = -1/2 x 8 fx = -4

OpenStudy (anonymous):

and: fx = -1/2

OpenStudy (jbo11):

good, and so for -4 check the graphs, which graph has the point (2, -4)? and then that's your answer

OpenStudy (anonymous):

graph d

OpenStudy (jbo11):

yup, so yes you had the right answer, but now you understand how to check rather than just knowing the answer to one problem

OpenStudy (jbo11):

well i hope you understand

OpenStudy (anonymous):

thank you i do :)

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!
Latest Questions
Graysonunderwoods: Have you even been beaten by a wet spaghetti noodle by your girlfriend because sh
35 minutes ago 48 Replies 1 Medal
AsianPanda08: What should i eat for dinner tonight? I can't choose
2 hours ago 51 Replies 2 Medals
Nina001: Trying 2 figure out what is the square root of 8746685
1 hour ago 30 Replies 2 Medals
SnowyBreaks: Is it bad to lose 3.8 pounds in less than 2 days?
1 hour ago 43 Replies 0 Medals
kaelynw: tried a lil smt, the arm is off but i like the other stuff
51 minutes ago 15 Replies 2 Medals
laylasnii13: Who wanna write or make a song with me???
6 hours ago 8 Replies 0 Medals
kaelynw: art igg
14 hours ago 13 Replies 2 Medals
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!