<PRE><B>Question 44559</B>
A) Find and interpret the C-intercept for the line
C = 2.85n + 30.52
C = 2.85(0) + 30.52
C = 30.52
At zero years, the C-intercept is at $30.52 billion.
B)Find and interpret the n-intercept for the line
C = 2.85n + 30.52
0 = 2.85n + 30.52
-30.52 = 2.85n
-3052/285 = n
-10 202/285 = n
Before 1990, the cost was zero.
C)Graph the line for n ranging from 0 through 20
{{{ graph( 800, 600, -2, 20, -5, 90, 2.85x + 30.52 ) }}}
D If this trend continues, then in what year will the 
cost of dental services reach 100 billion?
C = 2.85n + 30.52
100 = 2.85n + 30.52
69.48 = 2.85n
About 24 years later:
1990 + 24
Year: 2014</PRE>