3 years ago

1. Explain in a complete sentence if the point (2, -4) is the solution to the system of equations. x + y = -2 2x – y = 8

1 answer:

7 0

So, it says x + y = -2
we just plug in the numbers so,
2 + - 4 = -2
This equation is true and can also be written as
2 - 4 = -2

It also then says that 2x - y = 8
Again, you just plug in the numbers
2 * 2 - (-4) = 8
This equation is true and can also be writen as,
2*2 + 4 = 8

You might be interested in

Will mark brainlist PLSSSS HELPPPPPP <br><br> How many of each different 2-D shapes do you see?

liberstina [14]

Answer:

Hexagon and rectangle

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

How to get a square root of a given number

bonufazy [111]

Answer:

See below

Step-by-step explanation:

The square root of a number is defined as $\pm y=\sqrt[2]{x}$ where $(\pm y)^{2}$ gives the original number. For example, $\sqrt{4}=\pm2$ because $2^{2}=2*2=4$ and $(-2)^{2}=-2*-2=4$ .