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Mathematics 7 Online
OpenStudy (anonymous):

WILL FAN AND METAL IF YOU HELP! Which of the following inequalities, with the given domain, is represented on the graph? Combined Inequalities A. 4 ≥ t ≥ –3 B. 4 > t ≥ –3 C. 4 ≤ t < –3 D. 4 ≤ t ≤ –3

OpenStudy (anonymous):

Where is the graph?

OpenStudy (anonymous):

getting the gif

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Ok so what is the line underneath the < symbol mean?

OpenStudy (anonymous):

less or equal to right? :P

OpenStudy (anonymous):

Correct

OpenStudy (anonymous):

now you have to ask yourself is the lines from these 2 points intersecting?

OpenStudy (anonymous):

meaning do they touch each other at a point

OpenStudy (anonymous):

so no

OpenStudy (anonymous):

well yes. because the lines are going to each other like this exapmle. |dw:1397758567411:dw|

OpenStudy (anonymous):

sorry for the stupid dawing but its an example

OpenStudy (anonymous):

its okay

OpenStudy (anonymous):

so since they do touch what happens? :P

OpenStudy (anonymous):

Ok and are the points shaded in or open?

OpenStudy (anonymous):

ill tell you in a llittle just answer this ^^

OpenStudy (anonymous):

shaded

OpenStudy (anonymous):

nice ok

OpenStudy (anonymous):

that means something which ill tell you ina little but the reson the lines are connecting means that it is like x<1x>x

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

so it says that T is greater then -3 so cross out the ones that dont apply

OpenStudy (anonymous):

which would those be?

OpenStudy (anonymous):

a and b ?

OpenStudy (anonymous):

so the ones that sau t is greater then -3 are incorrect or correct

OpenStudy (anonymous):

no wait so c and d should be cancled out beacsue they are like |dw:1397759165885:dw|

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