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3 years ago

Which of the following is not a solution to the equation −2x + 3y = 9.

Mathematics

1 answer:

lakkis [162]3 years ago

3 0

Given that the equation $-2x+3y=9$

We need to determine the coordinate that is not a solution to the equation.

<u>Option A</u>: (0,3)

Substituting the coordinate (0,3) in the equation $-2x+3y=9$ , we get;

$-2(0)+3(3)=9$

$0+9=9$

$9=9$

Since, both sides of the equation are equal, then the coordinate (0,3) is a solution to the equation.

Hence, Option A is not the correct answer.

<u>Option B</u>: (1,-3)

Substituting the coordinate (1,-3) in the equation $-2x+3y=9$ , we get;

$-2(1)+3(-3)=9$

$-2-9=9$

$-11\neq 9$

Since, both sides of the equation are not equal, then the coordinate (1,-3) is not a solution to the equation.

Hence, Option B is the correct answer.

<u>Option C</u>: (-3,1)

Substituting the coordinate (-3,1) in the equation $-2x+3y=9$ , we get;

$-2(-3)+3(1)=9$

$6+3=9$

$9=9$

Since, both sides of the equation are equal, then the coordinate (-3,1) is a solution to the equation.

Hence, Option C is the correct answer.

Therefore, the coordinate (1,-3) is not a solution to the equation $-2x+3y=9$

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Lower total cost at Jump-n-Play: 40, 64.

Lower total cost at Bounce house: 28, 8, 30.

Same total cost at both locations: 32.

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For n visits to Jump-n-play, the cost is:

J(n) = 189 + 3n.

For n visits to Bounce Word, the cost is:

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Comparing them, we have that:

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Hence:

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For more than 32 visits, the cost at Jump-n-play is lower.

Hence:

Lower total cost at Jump-n-Play: 40, 64.

Lower total cost at Bounce house: 28, 8, 30.

Same total cost at both locations: 32.

More can be learned about functions at brainly.com/question/25537936

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3 years ago

Determine the roots of f(x) = -12-2.1x+18x^2-2.75x^3 graphically. in addition, determine the first root of the function with

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The given function is that is a cubic polynomial

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