So your slope is 2 and your Y-intercept is 1.
To graph it, start at 0 and go up to number 2.
        
             
        
        
        
The answer is 1.32 
For this calculation, assuming that no conversions are required, the calcitonin goes as follows:
All that is needed is to subtract 57.7 from 59.02.
59.02 - 57.7 = ?
59.02 - 57.7 = 1.32
Hope this helps! Have a great day.
        
             
        
        
        
Answer:
x=+/-3
Step-by-step explanation:
x^4-5x^2-36=0
factor
(x^2-9)(x^2+4)=0
split into 2 equations because one of these terms will need to equal zero for the eqation to be true
x^2-9=0              x^2+4=0
x^2=9                    x^2=-4
x=+/-3                    no real numbers