Question

Jamal claims that the graph of f(x)+2 is equivalent to the graph of f(x+k).For the case where Jamals claim is correct, what must be the value of k?
A.-4
B.-1
C.1
D.2

Answer 1

Answer:

$k=2$

Step-by-step explanation:

1) Rewriting:

$f(x+k)=f(x)+2$

2) Suppose f(x)= ax (Linear function with b=0)

$a(x+k)=ax+2\\a(x+k)=x+2\\ax+ak=x+2 \Rightarrow a=1\\x+k=x+2\\k=2$

3) Check the graph below

Answer 2

D.2 hope it helps you