The expression
475
ā
1.07
6
t
475ā
1.076
t
475, dot, 1, point, 076, start superscript, t, end superscript models the average annual per capita health care costs, in dollars, in the US as a function of the number of years since
1970
19701970.
What does
1.076
1.0761, point, 076 represent in this expression?