Which points are 3.5 units apart?
a.(7.5, 1.2) and (7.5, –2.3)
b.(7.5, –3.5) and (7.5, 3.5)
c.(7.5, 1.2) and (7.5, 2.3)
d.(7.5, –3.5) and (7.5, 7)

A if you both together you will get 3.5

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10