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Find a linear inequality with the following solution set. Each grid line represents one unit.

(Give your answer in the form \(ax+by+c>0\) or \(ax+by+c\geq0\) where \(a, \:b,\)  and \(c\) are integers with no common factor greater than 1.)
 

 Jul 13, 2021
 #1
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+1

y - 1 = 2(x - 1) ==> y = 2x - 2 + 1 = 2x -1

Test the point (0, 0) ===> The equation should be y > 2x - 1

 Jul 13, 2021
 #2
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thats wrong

justinwh333  Jul 13, 2021
 #5
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It is right; it just isn't in ax+by+c > or >= 0 form.

WhyamIdoingthis  Jul 14, 2021
 #6
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no i think the equation is wrong i didnt pay attention to the graph nor the form, soz sad

Guest Jul 14, 2021
 #3
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+3

equation of the red line in the form y=mx+b: 

slope is 2, y-intercept is -1, so the equation of the red line is y=2x-1

since it's a dashed line, the line isn't included in the shaded region

so the equation is y<2x-1

in the form ax+by+c>0, this equation sould be 2x-y-1>0

 

JP

 Jul 14, 2021
 #4
avatar+88 
+1

thank you!

justinwh333  Jul 14, 2021

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