Answer: He accidentally mixed up the numbers, he should've described his movement with 7+(-9)
Step-by-step explanation:
 
        
                    
             
        
        
        
Y= 4(sin(3x)-cos(2x))
y = 5sin(x-1)
        
             
        
        
        
Answer:
Undefined or Infinity
Step-by-step explanation:
(x1,y1)=(-11,8)
(x2,y2)=(-11,-17)
Slope = (y2-y1)/(x2-x1)
= (-17-8)/(-11-(-11))
= -25/0
= Undefined
 
        
             
        
        
        
Answer:
10x+11y-3w
Step-by-step explanation:
you just have to add the side up and do it by matching up with the values of the variable
 
        
             
        
        
        
A because 3 is rational, and it’s a natural and whole number because it’s about 0. It’s an integer because integers include negative and positive numbers.