This is one way of doing it.
We want to get the function into vertex form.
y = x2 - 4x + 2 Subtract 2 from both sides.
y - 2 = x2 - 4x Add (-4/2)2 , or 4, to both sides.
y - 2 + 4 = x2 - 4x + 4 Now that the right hand side is a perfect square trinomial, factor it.
y + 2 = (x - 2)(x - 2)
y + 2 = (x - 2)2 Subtract 2 from both sides.
y = (x - 2)2 - 2
When the equation is in this form, we can see that this is the graph of y = x2 shifted to the right 2 units and shifted down 2 units. The vertex is at (2, -2). So plot the first point at (2, -2) and go up just like a basic parabola from there. :)
I think you need to add the boys and the girls up. depending on the number of rows is how many you divide by. if it is divided by two i think it will be your answer
Answer:
i guess its -2 each time
Step-by-step explanation:
Do you have a picture to go with it?
Answer:
Z = 20
Step-by-step explanation:
3 x 20 = 60
60 - 12 = 48
