Find the formula for the nth term of the arithmetic sequence -7, -4, -1 , 2

Step-by-step explanation:

(-4)-(-7) = -4 + 7 = 3

(-1)-(-4) = 3

2-(-1) = 3

then the common difference r = 3

and the first term is -7

since the nth term = first term + (n - 1)×r

then  the nth term = -7 + (n - 1)×3

                              = -7 + 3(n - 1)

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)