Demographers are trying to understand the association between where a person lives and how they commute to work. The survey 100 people in three cities with the results shown below.

0 is its x and y coordinate

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this

the answer is 15.50 for one mile

b) is slope: 0   y- intercept 15.5