Question

F(x) = x + 6

In the function above, b is a constant. If f(6) = 7,
what is the value of f(-2) ?
A) 5
B) -2
C)
D)
1
7​

Answer 1

f(-2) = 1

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

Step-by-step 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