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Which inequality is represented by the graph?

y>-3/2x-2
y≥-3/2x-2
y≤-3/2x-2
y<-3/2x-2

Which inequality is represented by the graph? y>-3/2x-2 y≥-3/2x-2 y≤-3/2x-2 y&lt-example-1
User Theusaf
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1 Answer

2 votes

Answer:

y < -3/2x-2

Explanation:

Since the line is a dotted line it represents either a < or a > inequality. A solid line will represent either a ≤ or a ≥ inequality

So eliminate the second and third choices

To find out whether > or <, just choose a convenient point in the shaded region and see whether plugging it into the expression the left side results in a > or <

A great point to choose is x= -2, y = 0 (-2, 0) which is clearly inside the shaded region. Since y = 0, we have one less computation to worry about which is why I chose that point

Plug it into the expression
-3/2 x -2

=> (-3/2) (-2) - 2

=> 3 - 2 = 1

Since we had y = 0, check if 0 > 1 or 0 < 1

Since y (at x = -2 ) = 0 which is less than -3/2x -2 =1 at x = -2 this is a < inequality

Answer y < -3/2x-2

User Nathan Loudjani
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