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2 years ago

Is y=2x-8 and 2x-y=8 a dependent independent or inconsistent

Mathematics

2 answers:

kolezko [41]2 years ago

7 0

Answer:

dependent

Step-by-step explanation:

$y=2x-8$ and $2x-y=8$

First equation is already solve for y

LEts solve the second equation for y

$2x-y=8$

Subtract 2x on both sides

$-y=-2x+8$

Divide the whole equation by -1

$y=2x-8$

After solving for y, both equation are same

When both the system of equation are same then it has infinite solutions.

They are said to be dependent.

kolbaska11 [484]2 years ago

4 0

Note that 2x-y=8 can be solved for y: y=2x-8. This is identical to the first equation. The graph of one is exactly the same as the graph of the other. Thus, the two equations are dependent.

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2 years ago

Y varies jointly with x. Y=16 when x=4 and z=1/2. Find y when x=2 and z=1/4. Enter the value of y in the box. Picture attached,

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Answer:

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Step-by-step explanation:

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