how do you know which way to shade the number line based on the inequality?
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OpenStudy (saifoo.khan):
if, y > so shade upper part of the line.
If, y < so shade the lower part.
OpenStudy (anonymous):
Pick a point either above or below the line, such as 0,0. Plug that into your inequality. If true, shade. IF not, shade the opposite side.
OpenStudy (anonymous):
test a point on the equation, if it passes, then color tat area, if it does not, shade opposite side!
OpenStudy (anonymous):
wait.. how do you test the point?
OpenStudy (anonymous):
plug a point into the original equation
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OpenStudy (anonymous):
ok
OpenStudy (anonymous):
Plug in the X value for X and the Y value for Y.
Example: y> x+3
Plug in the point 0,0.... 0>0+3. This is FALSE. Thus, shade the other side of the line where (0,0) is not.
OpenStudy (anonymous):
ok.. I see your point.. I'll figure it oiut
OpenStudy (anonymous):
thanks
OpenStudy (anonymous):
give me an equation...
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