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Wewaii [24]
1 year ago
13

For each ordered pair, determine whether it is a solution to the system of equations.

Mathematics
1 answer:
-Dominant- [34]1 year ago
3 0

The only ordered pair that is a solution to the given system of equations is (-2, -6)

<h3>System of Linear Equations </h3>

From the question, we are to determine if each ordered pair is a solution to the given system of equations

The given system of equations is

-9x + 2y = 6

5x - 3y = 8

  • For (7, 9)

That is,

x = 7, y = 9

Putting the values into the first equation

Is -9(7) + 2(9) = 6

-63 + 18 = 6

-45 ≠ 6

Thus, (7,9) is not a solution

  • For (0, 3)

That is,

x = 0, y = 3

Putting the values into the first equation

Is -9(0) + 2(3) = 6

0 + 6 = 6

6 = 6

The ordered pair satisfies the first equation

Testing for the second equation

Is 5(0) - 3(3) = 8

0 - 9 = 8

-9 ≠ 8

Thus, (0, 3) is not a solution

  • For (5, -4)

That is,

x = 5, y = -4

Putting the values into the first equation

Is -9(5) + 2(-4) = 6

-45 - 8 = 6

-53 ≠ 6

Thus, (-5,4) is not a solution

  • For  (-2, -6)

That is,

x = -2, y = -6

Putting the values into the first equation

Is -9(-2) + 2(-6) = 6

18 - 12 = 6

6 = 6

The ordered pair satisfies the first equation

Testing for the second equation

Is 5(-2) -3(-6) = 8

-10 + 18 = 8

8 = 8

The ordered pair satisfies the second equation

∴ The ordered pair that is a solution to the system of equations is (-2, -6)

Hence, the only ordered pair that is a solution to the given system of equations is (-2, -6)

Learn more on System of equations here: brainly.com/question/8630769

#SPJ1

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Step-by-step explanation:

<u>Given polynomial </u><u>function </u>:-

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<u>To </u><u>find</u> :-

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<u>Solution:-</u>

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Here, the value of x is 7(given).

So, <u>Substitute the value of x on the RHS and </u><u>on </u><u>LHS </u>:-

\sf \implies{f}(“7”) = 10(“7”) + 45

Simplify the RHS:-

<u>Multiply 10 and 7 :-</u>

\sf \implies{f}(7) = 10 \times 7 + 45

\sf \implies{f}(7) = 70 + 45

<u>Add 70 and 45 :-</u>

\sf \implies{f}(7) = 115

We're done!

Hence, the value of f(7) would be,

\sf \implies{f}(7) = 115

\rule{225pt}{2pt}

I hope this helps!

Let me know if you have any questions.

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Step-by-step explanation:

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