Answer:
y = 2x -3
Step-by-step explanation:
y = 2x + b
plug the point in to the formula and solve for b
17 = 2 x 10 + b
b = -3
Use this to write the formula y = mx + b 
m is slope
 
        
             
        
        
        
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Answer:
x=-1 1/2,x=-1.5
Step-by-step explanation: x=-3/2
 
        
             
        
        
        
Answer:
360
Step-by-step explanation:
T = K(1/H)
Whereas T = seconds
H = cooker setting
K = the constant of proportionality
T = (240/6)/(1/9) = (240/6)x9 = 360