SOLUTION: According to Pricewaterhouse Cooupers, "Global State of Information System Security 2014," there were 3.4 million "detected and reported information security incidents" (cyberattac

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Question 969610: According to Pricewaterhouse Cooupers, "Global State of Information System Security 2014," there were 3.4 million "detected and reported information security incidents" (cyberattacks, etc.) against computer networkds in the USA in 2009. In 2014, that number had risen to 42.8 million.
(a) Which of the following linear equations could be used to predict annual number (in millions) of detected and reported information security incidents "y" in a given year "x," where x=0 represents the year 2009? Explain/show work.
A. y=0.13x+3.4
B. y=0.13x+2009
C. y=7.88x+2009
D. y=7.88x+3.4
(b) Use the equation from part (a) to predict the number (in millions) of detected and reported information security incidents in the year 2020. Round answer to the nearest tenth of a million. Show work.
(c) Fill in the blanks to interpret the slope of the equation: The rate of change of detected and reported information security incidents against computer networks in the US with respect to time is _________ per ________. (Include units of measurement).
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Note carefully how you are told to use x. Year 2009 is for x=0.
Now identify two data points, (x,y). These are (0, 3.4) and (5, 42.8).
Find the equation of the line that contains these two points.

m=%2842.8-3.4%29%2F%285%29
m=7.88

Using the point-slope form, picking the first point,
y-3.4=7.88%28x-0%29
highlight%28y=7.88x%2B3.4%29-------now in slope-intercept form.