Use the graph below to determine a1 and d for the sequence. graphed sequence showing point 1, negative 7, point 2, negative 17, point 3, negative 27, point 4, negative 37, point 5, negative 47, and point 6, negative 57 a1 = −7; d = 10 a1 = −7; d = −10 a1 = 1; d = 10 a1 = 1; d = −10

a1 = -7

d = -10

Step-by-step explanation:

Look at the points, you first point (1,-7) where a1 is 1 and that also means -7

Same for d go to the second point (2,-17) now add a1 from that

-17+7 = -10 so to get from -7 to -17 you had to add -10 <--- that is your d!

Goodluck

not sure but it may be b, as i said i'm not sure.