Someone please help me I really don’t understand

5) (2,-1)  

Step-by-step explanation:

I believe you are just solving to make the equations true. so. for 5 just set the equation equal to each other.

5) 4x-9 = x-3

        +9      +9             - reminder do the inverse with these equations

                  6            - the 9 cancels out

4x=x +6                bring equation down

-x   -x                            - combine like terms + inverse

3x=6

/3       /3                 - divide both sides by 3

x=2

Next plug in,

4(2)-9=-1

2-3=-1

Therefore (2,-1) Is the answer where x=2 and y=-1

Answers for the rest are below!!

6) (6,-7) X=6  Y=-7

7) (0,-5)  X=0 Y=-5

8) (7,-1) X=7 Y=-1

There you go kiddo

if you need extra help make a comment and i will explain!

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

correct answer is b. 27/8

step-by-step explanation: