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Mathematics 11 Online
OpenStudy (anonymous):

x < 0 Which side of the graph do i shade in?

jimthompson5910 (jim_thompson5910):

which numbers are less than 0?

OpenStudy (anonymous):

the negatives

OpenStudy (anonymous):

I'm sorry the left side i meant.

jimthompson5910 (jim_thompson5910):

so you shade to the left of x = 0

OpenStudy (anonymous):

Since those numbers to the left of the x axis are - so that means they are less than zero

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

well the equation is x<0

OpenStudy (anonymous):

One trick is to always write the inequality with the variable on the left side. This is frequently taught in the lower grades. When you do this, you will always shade in the direction indicated by the inequality sign. With x<0, shade the left; notice the arrow points to the left

OpenStudy (anonymous):

ohhh got it! what about his one??

OpenStudy (anonymous):

this*

OpenStudy (anonymous):

are you writing an equation to that line?

OpenStudy (anonymous):

ya i have to find the inequality of the graph

OpenStudy (anonymous):

okay so if you look at the picture you can see that the y intercept is (0,4) and if you know how to write an equation that gives the y intercept, slope intercept form. y=mb+b where b is the y intercept and m is the slope. I'm guessing the slope is -½. and it is a dotted line so it is just greater than and NOT greater than and equal to, and the shading is on the values greater than the line so it has to be greater than. so then you write the equation and fill in with the stuff you know: y>-½x+4 and there is the equation.

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