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Nezavi [6.7K]
3 years ago
6

What is the point of intersection of these two lines? -4x + y = 8 2x - y = 4 (2, 0)

Mathematics
1 answer:
kotykmax [81]3 years ago
7 0

Answer:

(- 6, - 16 )

Step-by-step explanation:

Given the 2 equations

- 4x + y = 8 → (1)

2x - y = 4 → (2)

Adding the 2 equations term by term will eliminate the term in y

- 2x = 12 ( divide both sides by - 2 )

x = - 6

Substitute x = - 6 into either of the 2 equations and soilve for y

Substituting x = - 6 into (2)

2(- 6) - y = 4

- 12 - y = 4 ( add 12 to both sides )

- y = 16 ( multiply both sides by - 1 )

y = - 16

Solution is (- 6, - 16 )

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Answer:

Step-by-step explanation:

A. (x, y)  is not an equation.

B. 2 + 7 = 9  Not a linear equation, as there is no variable.

C. 3x + 5 = 20  This is a linear equation.

D. y = 2x + 1  This is a linear equation.

5 0
3 years ago
For a finite sequence of nonzero numbers, the number of variations in sign is defined as the number of pairs of consecutive term
elena55 [62]

Answer:

The no. of variations in sign is 3

Step-by-step explanation:

Variation in sign occurs when every single time a negative product is produced by a pair of consecutive terms.

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Therefore, we take the product of the pair of consecutive terms as:

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3 years ago
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Temka [501]

Answer:

red apples

Step-by-step explanation:

1 lb of green apples is 1.5

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6 0
2 years ago
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Write and solve an equation to find the value of the variable 104,137,154,131,x; mean=130
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The calculation part I would like to leave it for you. It's a good practice.
3 0
3 years ago
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