<PRE><B>Question 1173656</B>
make them ordered pairs; years will be t, pop will be y.
Let 1972=0
so (0,  65.309) is one ordered pair
and (45, 207.774) is other ordered pair
the slope is 142.465/45 or 3.1659
point slope formula for the equation y-y1=m(t-t1), m slope and (t1, y1) point
y-65.309=3.1659t
y=3.1659t+65.309 units millions of people
the y-intercept is 65.309 millions
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in 2027, x will be 55.  It will also be 10 years later with slope 3.1659, so there will be 31.659 million more people than 2017 or 239.433 million people.
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