Graph the first six terms of a sequence where a1 = -10 and d = 3.
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OpenStudy (vera_ewing):
A.
OpenStudy (vera_ewing):
B.
OpenStudy (vera_ewing):
C.
OpenStudy (vera_ewing):
D.
OpenStudy (misssunshinexxoxo):
@jim_thompson5910
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OpenStudy (zzr0ck3r):
what is d?
OpenStudy (zzr0ck3r):
no no. I dont understand the question. But I don't know much about arithmetic sequences. Is that what you are doing?
OpenStudy (freckles):
is it arithmetic sequence though ? I assume it is because a lot of people use d to mean common difference but I'm pretty sure it is not universal notation.
OpenStudy (vera_ewing):
Yes it's an arithmetic sequence.
OpenStudy (freckles):
if it is an arithmetic sequence, the sequence goes like this:
\[a_1,a_1+d,a_1+2d,a_1+3d,...\]
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OpenStudy (freckles):
a1 is the first term
a1+d is the second term
...
a1+(n-1)d is the nth term
OpenStudy (freckles):
ok so a1=-10
and you know a2=?
OpenStudy (freckles):
well a1+d isn't -20
Ok I'm going to use the x-axis as the n-axis
and the y-axis as the outputs
OpenStudy (freckles):
a1+d=-10+3=-7
OpenStudy (freckles):
so graphing (1,-10) and (2,-7)
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OpenStudy (vera_ewing):
Oh so it's A.
OpenStudy (freckles):
|dw:1436740876427:dw|
I ran out of room so I pretending -10 is someone down there