For this, there is two rules. The common slope-intercept form is y=ax + b. For parallel, b can change, but a, or the slope, can't change. But for perpendicular, the a should be -1/a, where the answer for times the original equation, or a, and the second equation, or -1/a, is -1. To prove these two rules, you can graph it using random numbers but follow these two rules. if you have any part that don't understand for this answer, feel free to ask in the "Ask for details" section.
        
             
        
        
        
Answer:
B) 4 
Step-by-step explanation:
There is an outbuilding that has an area of 80 square feet. The rectangle on the blueprint that represents the outbuilding has an area of 20 square inches. If the actual outbuilding has a wall length of 10 feet, what is the length of that wall on the blueprint . A) 3 B) 4 C) 5 D) 6
The length of the wall on the blue print can be calculated as:
20 square feet ÷ 5
= 4 feet
 
        
             
        
        
        
Answer:
230
Step-by-step explanation:
 the angle 115 is half of that arc 
 
        
             
        
        
        
Answer: 5
Step-by-step explanation:
The degree is  . Setting this equal to 10, we get m = 5.
. Setting this equal to 10, we get m = 5.