Slope intercept is basically solve for y
y=mx+b
m=slope
b=yintercept
-3x-10y=7
add 3x to both sides
-10y=3x+7
divide both sides by -10
y=-3/10x-7/10
slope is -3/10
yintercept is -7/10 or at point (0,-7/10)
        
             
        
        
        
We can’t graph for you here, sorry
        
                    
             
        
        
        
Answer:
To find out the first three terms of 3n - 2 substitute 1 ,2 and 3 into the equation. 
so the three terms a
  3(1)-2=1
 3(2)-2=6-2=4
 3(3)-2=9-2=7
 As you can see the sequence goes up in 1,4 and 7.To find out the 10th term you also substitute 10 into the equation so 3(9)-2=18-2=16
so 16 is the tenth term
 Hope this helped!
 
        
             
        
        
        
The diagonals intersect perpendicularly, two consecutive angled are supplementary, and that opposite angles are equal
        
             
        
        
        
Answer:
use the distributive property to distribute the 8
-16+16n+3n=40+5n
-16+19n=40+5n
-16=40+5n-19n
-16=40-14n
-14n+40= -16
-14n= -16-40
-14n= -56
n= -56/-14
n= 4