The following table shows measures of %2's distance to the sun at certain times ($t = 0$ represents the time when the planet was closest to the sun).
Time $\bold{t}$ (years) \t Distance $\bold{r}$ (million km) \\ %4[0] \t %5[0] \\ %4[1] \t %5[1] \\ %4[2] \t %5[2] \\ %4[3] \t %5[3] \\ %4[4] \t %5[4] \\ %4[5] \t %5[5] \\ %4[6] \t %5[6] \\ %4[7] \t %5[7] \\ %4[8] \t %5[8] \\ %4[9] \t %5[9] \\ %4[10] \t %5[10] \\ %4[11] \t %5[11] \\ %4[12] \t %5[12]
Figures are rounded and based on the planet's characteristics as documented in, say, wikipedia.org.
Average rate of change of $r$ over $[%0,%1] =$ BOX
(Answer should be accurate to 2 decimal places.)
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Average rate of change of $r$ over $[%0,%1] = %3.$
Interpretation:
During the BOX-year period starting %0 years after it was closest to the sun, %2's distance from the sun RADIO at an average rate of BOX million km per year.
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