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Which point would not be a solution to the system of linear inequalities shown below? y<4/5x-2. y>-3x+7 answers: (5,-5)(5,-6)(10,-8)(-10,-7)

User Readonly
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Answer

Option D is the answer.

Point (-10, -7) is not a solution to the system of lineare inequalities.

Step-by-step explanation

The inequalities to be examined include

y < (4x/5) - 2

And

y > -3x + 7

We are now asked to evaluate if a couple of answers satisfy the two inequalities

(5, -5)

x = 5, y = -5

y < (4x/5) - 2

Inserting the numbers

-5 < (4×5/5) - 2

-5 < 4 - 2

-5 < 2

This is true

y > -3x + 7

Inserting the numbers

-5 > -3 (5) + 7

-5 > -15 + 7

-5 > -8

This is also true.

(5, -5) is a solution for the system of inequalities.

(5, -6)

x = 5, y = -6

y < (4x/5) - 2

Inserting the numbers

-6 < (4×5/5) - 2

-6 < 4 - 2

-6 < 2

This is true

y > -3x + 7

Inserting the numbers

-6 > -3 (5) + 7

-6 > -15 + 7

-6 > -8

This is also true.

(5, -6) is a solution for the system of inequalities.

(10, -8)

x = 10, y = -8

y < (4x/5) - 2

Inserting the numbers

-8 < (4×10/5) - 2

-8 < 8 - 2

-8 < 6

This is true

y > -3x + 7

Inserting the numbers

-8 > -3 (10) + 7

-8 > -30 + 7

-8 > -23

This is also true.

(10, -8) is a solution for the system of inequalities.

(-10, -7)

x = -10, y = -7

y < (4x/5) - 2

Inserting the numbers

-7 < (4×-10/5) - 2

-7 < -8 - 2

-7 < -10

This is not true

y > -3x + 7

Inserting the numbers

-7 > -3 (-10) + 7

-7 > 30 + 7

-7 > 37

This is also not true.

(-10, -7) is not a solution for the system of inequalities.

Hope this Helps!!!

User Ryan Conrad
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