Write the first six terms of the arithmetic sequence The fir
     Write the first six terms of the arithmetic sequence. The first term, a_1, is - 0.5, and the common difference, d, is - 1.7.  a_1 =  (Type a decimal.) 
  
  Solution
a1=-0.5 and d= -1.7
a2= a1+d=-0.5 -1.7=-2.2
a3= a2 + d= -2.2-1.7=-3.9
a4=a3+d=-3.9-1.7=-5.6
a5=a4+d= -5.6-1.7=-7.3
a6=a5+d= -7.3-1.7=-9
therefore the first 6 terms are
-0.5,-2.2,-3.9,-5.6,-7.3,-9

