1: slope = 2/1 or 2
2: slope = 5/-5
3: slope = 3/2
4: slope = 7/-4
5: slope = 3/5
6: slope = 2/-8
7: slope = 6/2 or 3
8: slope = 2/-4
9: slope = 1/6
        
             
        
        
        
If the x is squared, the parabola is vertical (opens up or down). If the y is squared, it is horizontal (opens left or right). If a is positive, the parabola opens up or to the right. If it is negative, it opens down or to the left.
        
             
        
        
        
Answer:
2
Step-by-step explanation:
 The temperature was originally 2 degrees because if you draw a number line and put a 0 in the middle of the positive numbers and the negative numbers ( - 8 - 7 - 6 -5 - 4 0 1 2 3 4 5 6 7 8) - example. Put the positive and negative numbers on different sides of the 0 and go left from the positive numbers from 2 and count 6 skips down to - 4. So 2 would be your answer. 
 
        
             
        
        
        
Answer:
B 
Step-by-step explanation:
Line crosses y-axis at 2. 
Slope =  
 
For each 1 square the line rises/falls it moves to the right/left 5 squares. 
Negative slope lines are downhill left to right.