Answer:
quadrant 1 that the graph is mainly in 
 
        
                    
             
        
        
        
Answer:
(a)
Step-by-step explanation:
The tangent and the normal at point P are perpendicular.
Given
 = 3, then
 = 3, then
Given the gradient m of the tangent then the gradient of a line perpendicular to it is
 = -
 = -  = -
 = -  → (a)
 → (a)
 
        
                    
             
        
        
        
Answer:-45
Step-by-step explanation:this is how I do it: draw a line in the middle of the equal sign. Now its split in two parts. Do the opposite operation on the left side, so minus 6 from the left AND the right. Now it equals to y/3 = -15. Now times each side by 3 so the y stands alone. -15 times 3 equals -45. Y = -45. Sorry it's kinda hard to explain!
 
        
                    
             
        
        
        
Answer:
The solutions to the system of equations are:

Thus, option C is true because the point satisfies BOTH equations.
Step-by-step explanation:
Given the system of the equations

Arrange equation variables for elimination






solve for x

Divide both sides by -2






The solutions to the system of equations are:

Thus, option C is true because the point satisfies BOTH equations.
 
        
             
        
        
        
14.6 lbs/4 weeks = 3.65 lbs /week
she lost  3.65 pounds each week