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Write the linear inequality shown in the graph.

Write the linear inequality shown in the graph.-example-1
User Yan Zhu
by
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1 Answer

1 vote
Fist, in the equation y=mx+b, b is the y-intercept. The y-intercept is the poin on the line that crosses the x-axis; the y-intercept is the value of yThese equations follow that format.
Y=mx+b
y
\geq 3x-4. <-----In this equation, the slope(m)=3 b= -4.

On the graph, we can see that the line crosses the x-axis at y=-4. Knowing that, we can eliminate the answer choices with +4 in the inequality.


The next step, is to pick an (x,y) coordinate that is in the shaded region and plug it into the remaining 2 inequalities. Which ever inequality is true after you solve it, that is the correct answer.
For example, I'll choose to plug in (-4,4) into the y
\geq 3x-4.
y
\geq 3x-4.
(4)
\geq (3(-4))-4.
(4)
\geq (-12)-4.
(4)
\geq -16

So, this statement is true becasue -16 is less than positive 4. Therefore, the correct answer would be y
\geq 3x-4.
Hope that helped! Comment back with any further questions!


User Andy Rimmer
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