Question

F(x) = x + 6

Answer 1

Answer:

f(-2) = 1

(assuming you meant "f(x) = x + b" in the first line)

Explanation:

Given: f(x) = x + b

plug in (6,7)

f(6) = 6 + b

7 = 6 + b

b = 1

so the equation is f(x) = x + 1

plug in x = -2

f(-2) = x + 1 = -2 + 1 = 1