Which best describes the relationship between the lines? 2x – y = −7 2x + 4y = 2

Mathematics

2 answers:

seropon [69]3 years ago

8 0

Answer:

Perpendicular

Step-by-step explanation:

2x - y = -7

2x + 4y = 2

-y = -2x - 7

4y = -2x + 2

y = 2x + 7

y = -1/2x + 1/2

Cannot be:

Parallel because the slope would otherwise be the same.

Same line because the equation is not proportional

So, they are perpendicular because a perpendicular line would be a negative and a reciprocal of the current line

ohaa [14]3 years ago

8 0

Answer:

perpendicular

Step-by-step explanation:

You might be interested in

Verify the identity. cos (x - y) - cos (x + y) = 2 sin x sin y

nignag [31]

Let's start from the left side, and manipulate it to get the right side, which would prove the identity.

We know that:

i) $\displaystyle{ \cos(x-y)=\cos x \cos y+\sin x \sin y$

ii) $\displaystyle{ \cos(x+y)=\cos x \cos y-\sin x \sin y$ .

From the above fundamental identities, we can rewrite the left hand side as:

$\displaystyle{ \cos x \cos y+\sin x \sin y-(\cos x \cos y-\sin x \sin y)=$

$\displaystyle{ \cos x \cos y+\sin x \sin y-\cos x \cos y+\sin x \sin y=2\sin x \sin y$ ,

which is what we needed to show.

5 0

3 years ago

What’s answer I needed help please

stira [4]

I think it’s b

I hope I’m right

4 0

3 years ago

How many flies fit into a 10 oz cup

Archy [21]

Answer:

im thinkin its 29

Step-by-step explanation: