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Mathematics 24 Online
OpenStudy (destinymasha):

Choose the correct graph for the following inequality. y ≤ 2x - 4

OpenStudy (destinymasha):

OpenStudy (destinymasha):

Please Help!!

OpenStudy (hunus):

The solid line means that y can actually assume values that are equal to 2x - 4 where as the dashed line means that y can be anything having a value less that 2x - 4 If y <= 2x -4 then every value of y less than a certain value should be shaded. For instance, if x = 4, then y<=2*4-4 y <= 4 So which graph do you think it is?

OpenStudy (destinymasha):

hold on a sec, lets see...

OpenStudy (hunus):

For example |dw:1368425868355:dw|

OpenStudy (destinymasha):

err, are the kinds of lines of any significance? Like, one is dotted the other, ,,,,,

OpenStudy (destinymasha):

sorry, a little confused

OpenStudy (hunus):

If it's dotted it means y can't be that value. In the picture of y < 4, it's dotted because y can't actually equal 4, it can equal everything up to it. If it was a solid line y could also be 4

OpenStudy (destinymasha):

i think its either a or c?

OpenStudy (hunus):

It is one of them :) If y is less than x + 3 then it is shaded 'under' the line y = x + 3

OpenStudy (destinymasha):

u lost me

OpenStudy (destinymasha):

I think its C

OpenStudy (hunus):

That's correct

OpenStudy (destinymasha):

yay!! Thanks for taking Soo much time to help.

OpenStudy (hunus):

You're welcome :)

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