IDNLearn.com: Your reliable source for finding expert answers. Our Q&A platform offers reliable and thorough answers to ensure you have the information you need to succeed in any situation.

Select the correct answer.
Which set of coordinates satisfies the system of equations y = x − 3 and y = -2x + 1?


Sagot :

Given:

The system of equations is

[tex]y=x-3[/tex]         ...(i)

[tex]y=-2x+1[/tex]         ...(ii)

To find:

The set of coordinates that satisfies the system of equations.

Solution:

On equating the given equations, we get

[tex]x-3=-2x+1[/tex]

[tex]x+2x=3+1[/tex]

[tex]3x=4[/tex]

Divide both sides by 3.

[tex]x=\dfrac{4}{3}[/tex]

Putting [tex]x=\dfrac{4}{3}[/tex] in (i), we get

[tex]y=\dfrac{4}{3}-3[/tex]

[tex]y=\dfrac{4-9}{3}[/tex]

[tex]y=\dfrac{-5}{3}[/tex]

Therefore, the required set of coordinates that satisfies the given system of equations is [tex]\left(\dfrac{4}{3},\dfrac{-5}{3}\right)[/tex].