Slope = (10 - 5)/(-9 + 15) = 5/6
y = mx + b where m = slope and b = y-intercept
b = y - mx
b = 5 - (5/6) (-15)
b = 5 +12.5
b = 17.5
Equation y = 5/6 x + 17.5
Y-intercept = 17.5
X-intercept when y = 0
So 
5/6 x + 17.5 = 0
5/6 x = -17.5
 x = (-17.5) (6/5)
 x = -21
Answer
Y intercept (0, 17.5 )
X intercept (-21 , 0)
 
        
             
        
        
        
Answer:
12 meters
Step-by-step explanation:
Area = length × width.  If we divided 96 (area) by 8 (width) we should get the length. 98 ÷  8 = 12. 
 
        
             
        
        
        
You x all the sides together and add the 2 numbers you get 
        
             
        
        
        
The error of percentage is the amount of error over the original amount.
In this case it is 22/95  (not 22 over 77 because 77 is not the original amount they expected to sell.   
22/95 = .2315  or 23.2% to the nearest tenth of a percent
Perhaps your teacher just wants 23% as an the approximate error.
        
                    
             
        
        
        
Answer:
I and IV
Step-by-step explanation:
cosine is positive/greater than 0 in quadrants I and IV. Its just a rule of the unit circle.
Can remember by All Star Trig Class
meaning all the trig funtions are positive in quadrant I
sin is positive in II
tan is positive in III
and cos is positive in IV