z= 2y-4x ok i hope this helps.
Answer:
20
Step-by-step explanation:
Answer: The correct choice is answer D.
First, the first step of the transformation moves the unit 2 places to the right. The x-coordinate controls the movement left or right. Add 2 to the x-value moves it right 2 places.
Second, we have to reflect it over the x-axis. Taking the opposite of all of the y-values will reflect the shape over the x-axis. Therefore, we will use " - y" .
It is substitution. Because you are substituting 3=y into x+5=3