inequality

foothillstudent_12

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Dec 16, 2008
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15
i have another one but this one is different, in this one i have to see if and/or when the student went wrong


1/2(-4x+8)>12

line 1: -4x +8>24
line 2: -4x>16
line 3: x<-4

answers:
a. line 1 is the first incorrect
b. line 2 is the first incorrect
c. line 3 is the first incorrect
d. all line are correct
 

Subhotosh Khan

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Jun 18, 2007
Messages
18,134
foothillstudent_12 said:
i have another one but this one is different, in this one i have to see if and/or when the student went wrong


1/2(-4x+8)>12

line 1: -4x +8>24
line 2: -4x>16
line 3: x<-4

answers:
a. line 1 is the first incorrect
b. line 2 is the first incorrect
c. line 3 is the first incorrect
d. all line are correct
So.... what do you think? Why do you think so?
 

foothillstudent_12

New member
Joined
Dec 16, 2008
Messages
15
well i had wrote down that i thought it was D. because when i wrote it down and did the work i came out with the same answer
 

Subhotosh Khan

Super Moderator
Staff member
Joined
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Messages
18,134
foothillstudent_12 said:
well i had wrote down that i thought it was D. because when i wrote it down and did the work i came out with the same answer
As far as I can see, you are correct
 

foothillstudent_12

New member
Joined
Dec 16, 2008
Messages
15
thanks i was just making sure
:D
 
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