Asked by lijm
                As cell phones proliferate, the number of pay phones continues to drop. The number of pay phones from 2004 through 2009 (in millions) are shown below (x=0 corresponds to 2004) :
year,x : 0, 1, 2, 3, 4, 5
Number of pay phones: 1.30, 1.15, 1, 0.84, 0.69, 0.56
Derive an equation for the line.
So far I only found the slope m. Here is what I did:
0.56-1.30/5-0 = -0.74/5.
Would I proceed to find the y-intercept by using point-slope form?
            
        year,x : 0, 1, 2, 3, 4, 5
Number of pay phones: 1.30, 1.15, 1, 0.84, 0.69, 0.56
Derive an equation for the line.
So far I only found the slope m. Here is what I did:
0.56-1.30/5-0 = -0.74/5.
Would I proceed to find the y-intercept by using point-slope form?
Answers
                    Answered by
            R_scott
            
    yes
    
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