Answer:
y = x/4 -1/2
Step-by-step explanation:
given coordinates : ( -2, -1 ) and ( 2 , 0 )
gradient = y2 - y1 / x2 - x1
                = 0 - -1 / 2 - -2
                = 1/4
equation of line:
y - y1 = m( x - x1 )
y - 0 = 1/4 ( x - 2 )
y = x/4 -1/2
the line shown below to confirm:
 
        
                    
             
        
        
        
Answer:
(-2.5, 2)
Step-by-step explanation:
just find where the points meet up lol
 
        
             
        
        
        
Hmmm... 
We have to divide 12 by 8, since we need to see how 8 students will share 12 slices. 
12/8=1 and 1/2
So, each student can have a slice and a half, but since we aren't allowed to cut the slices...
We can let each student have one slice, with 4 left over, so...
Every student can have one slice, and then half can have a second slice :)!
I'm not sure if that is what was meant by the question, but that was all I could think of. 
I hope I helped! :)
        
             
        
        
        
Answer: x = 3
Step-by-step explanation:
First you need to start by adding positive 4x to both sides since the 4x is a negative.  4x + (-7x) = -3x.  Then it is just simply -3x+2 = -7.  Since 2 is a positive number subtract both both sides by 2.  Then you should get -3x = -9.  Then divide both sides by -3 and the answer is x = 3.
 
        
             
        
        
        
The total amount of money Eric spent is $24.4 dollars! Hope this helps!