Okay, for this one is will use substitution:
y=x+4
y-x=4
2y-2x=8
-2x+2y=8
+
2x+y=13
=
3y=21
y=7
x=3 is your final answer. Hope it help!
Answer:

Step-by-step explanation:
Since both the original and transformed graph have the same x value for their vertex, there was no horizontal shift. However the vertex shifted up. Specifically it shifted up 5 units. Therefore:

The plus 5 performs a translation up 5 units. Plugging in for f(x) it can be seen that:

Answer:
c. 15% or more
Step-by-step explanation: