Mathematics
13 Online
OpenStudy (james1107):
Which of the following points is in the solution set of y > -x2 + 5?
(0, 5)
(1, 3)
(2, 4)
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (james1107):
i would go with the middle one
OpenStudy (james1107):
but idk
OpenStudy (alivejeremy):
One min
OpenStudy (james1107):
ok
OpenStudy (dayakar):
incorrect
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (james1107):
how
OpenStudy (dayakar):
how did u get it ?
OpenStudy (james1107):
i just plugged in those set of numbers and worked it out
OpenStudy (alivejeremy):
Maybe A ?
OpenStudy (james1107):
can you work it out plz
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (james1107):
or help me work it out
OpenStudy (alivejeremy):
Sure
OpenStudy (dayakar):
third one is correct
OpenStudy (alivejeremy):
1. Regroup terms
y>5−x2
OpenStudy (alivejeremy):
2 Subtract 55 from both sides
y−5>−x2
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (alivejeremy):
5*
OpenStudy (texaschic101):
its just a matter of subbing in ur points and seeing which is true
OpenStudy (alivejeremy):
3 Multiply both sides by −1
−y+5<x2
OpenStudy (james1107):
so would it be a @texaschic101
OpenStudy (dayakar):
(x,y) = (2,4)
y > -x^2 +5
4 > - (2)^2 +5
4> -4+5
4>1 (true)
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (alivejeremy):
4 Regroup terms
5−y<x2
OpenStudy (alivejeremy):
5.Take the square root of both sides
±5−y−−−−√<x
OpenStudy (texaschic101):
not a
OpenStudy (james1107):
how bout c @texaschic101 bc all of these answers at once are confusing me
OpenStudy (dayakar):
plz , check my solution
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (james1107):
i did its c thanks
OpenStudy (dayakar):
:)