3 years ago

3x + y = 4 x + 2y = -2

Mathematics

1 answer:

dsp733 years ago

7 0

3x+y=4 (y=-3x+4)

Plug it in for y x+2(-3x+4)=-2
x=2

Plug in for x 2+2y=-2
y=-2

Solution: (2,-2)

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Answer:

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Step-by-step explanation:

Given [Missing from the question]

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Required

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Read 2 more answers

Which ordered pair is generated from the equation shown below? y = 3x + 2 A. (3, 11) B. (3, 9) C. (5, 15) D. (2, 4)

borishaifa [10]

Answer:

y = 3x + 2

There slope is 3 and intercept is 2.

<u>First find what are the 2 pair that given by slope =3</u>

First consider A. (3, 11) and B. (3, 9)

Tan α = \fraction(11-9)(3-3)

It is undefine.

Next consider A. (3, 11) and BC (5,15)

Tan α = \fraction(15-11)(5-3)

Next consider A. (3, 11) and D. (2,4)

Tan α = \fraction(11-4)(3-2)

Next consider B (3, 9) and C. (5,15)

Tan α = \fraction(15-9)(5-3)

So this is ordered pair is generated from slope =3

Step-by-step explanation:

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