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HELP PLS!

What ordered pair represents the solution to this system of linear equations?

3y=2x+2
y=43x+1

(−12,13)

(−13,12)

(13,−12)

(12,−13)

1 Answer

7 votes

Question:

What ordered pair represents the solution to this system of linear equations?

3y = 2x + 2

y = 4/3x + 1

Options

(−1/2, 1/3)

(−1/3, 1/2)

(1/3, −1/2)

(1/2, −1/3)

Answer:

The ordered pair that represents the solution to the given system of linear equations is
((-1)/(2) , (1)/(3))

Solution:

Given system of linear equations are:

3y = 2x + 2 ---- eqn 1


y = (4)/(3)x + 1 --- eqn 2

Let us solve the given system of equations to find the ordered pair (x, y)

Substitute eqn 2 in eqn 1


3((4)/(3)x + 1)=2x + 2\\\\4x + 3 = 2x + 2\\\\4x - 2x = 2 - 3\\\\2x = -1\\\\x = (-1)/(2)


\text{ Substitute }x = (-1)/(2) \text{ in eqn 2 }


y = (4)/(3) * (-1)/(2) + 1\\\\y = (-2)/(3) + 1\\\\y = (-2+3)/(3)\\\\y = (1)/(3)

Thus the ordered pair that represents the solution to the given system of linear equations is
((-1)/(2) , (1)/(3))

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