Answer:
10. y=2x+1                                              y = -1/2x +1
11. y=-1/3x +6                                          y = 3x -4
12. y=-5x-18                                            y=1/5x + 14/5
Step-by-step explanation:
To write the equation of a line we must have a slope and a point. To find the slope, we use the slope from the equations for parallel lines and modify it for perpendicular lines. 
10. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.   The slope here is 2. The parallel slope is 2 and the perpendicular slope is the negative reciprocal or -1/2.
Parallel                                           Perpendicular
(y-1)=2(x-0)                                       (y-1)==-1/2(x-0)           
y-1=2x                                              y-1 = -1/2 x
y=2x+1                                              y = -1/2x +1
11. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.   The slope here is -1/3. The parallel slope is -1/3 and the perpendicular slope is the negative reciprocal or 3.
Parallel                                           Perpendicular
(y-5)=-1/3(x-3)                                        (y-5)=3(x-3)           
y-5=-1/3x+1                                            y-5 = 3x - 9
y=-1/3x +6                                              y = 3x -4
12. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.   The slope here is -5. The parallel slope is -5 and the perpendicular slope is the negative reciprocal or 1/5.
Parallel                                           Perpendicular
(y-2)=-5(x--4)                                           (y-2)=1/5(x--4)           
y-2=-5(x+4)                                              y-2 = 1/5(x +4)
y-2=-5x -20                                              y-2 = 1/5x +4/5
y=-5x-18                                                    y=1/5x + 14/5
 
        
             
        
        
        
Answer:
13, 19, 73, 89
Step-by-step explanation:
Prime numbers only have two factors, 1 and itself. 
 
        
                    
             
        
        
        
Answer
-1(2/3*8)+23*(-19)
This is my favorite equation.
 
        
             
        
        
        
The Kangaroo Rat and the common tree shrew is familiar because the kangaroo rat and the tree shrew have the same class: Mammalia, same phylum: Chordata, and the same kingdom : Animalia. They both are identical because they are small look like small rats etc.