Which measures are $1 greater for group b than for group a

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Which function has the domain x> -11?