Question

The partial sum of the first 6 terms of the arithmetic sequence with a1 = -6 and d = 4 is 24.
True or False

Answer 1

do you know the formula to find other 5 terms of the sequence ?

Answer 2

i think i have it but im not sure how to type it here haha

Answer 3

oh okay \[\huge\rm a_n = a_1+(n-1)d\]
d= common difference
a_1=first term
n= number of term
so to find 2nd term
substitute n for 2

Answer 4

so i just plug the a1 and d into that equation and add them, correct?

Answer 5

a_1 = -6
d=4 so plug them into the equation
solve the parentheses first and then multiply by 4(d) and then add with -6

Answer 6

like for 2nd term \[\huge\rm a_2 = -6+(\color{ReD}{2}-1)4\]
solve the parentheses first
2-1=1
-6+1(4)
-6+4
=-2 so 2nd term is -2
find other 4 and then combine them

Answer 7

i got the answer, thank you for your help again!