y = mx + b
slope(m) = -4/5
(10,5)...x = 10 and y = 5
now sub into the formula and find b, the y int
5 = -4/5(10) + b
5 = -40/5 + b
5 = -8 + b
5 + 8 = b
13 = b
so ur perpendicular equation is : y = -4/5x + 13 <=== 
Hope this helps!
 
        
             
        
        
        
Answer:
y= -30
Step-by-step explanation:
THis is because you substitue 3  for X and then multiply -10 and 3 and a negative times a positive is a negative so -10 times 3 is -30
 
        
                    
             
        
        
        
To determine the scale factor of the dilation, we determine the distances between the endpoints of the two lines through the equation,
                            d = √(x₂ - x₁)² + (y₂ - y₁)²
 Substituting the known values.
Line Segment 1:     d = √(1 - 2)² + (4 - 8)²  = 4.123
Line Segment 2:     d = √(18 - 14)² + (12 - 1)² = 11.70
Dividing the answers will give us 0.352
        
                    
             
        
        
        
The answer to the question is 1-5