The answer is D because the y is the only thing that is changing.
If you have a piece of material of a total length of 3 meters and each piece to be cut must be 1 meter then you will only be able to cut 3 pieces.
Hope this helps :)
Since the vertex form of a parabola is y=a(x-h)^2+k with h and k being the vertex (the x and y values, respectively), we get a(x-0)^2+20=ax^2+20. Plugging (10, 8) in to find a, we get 8=a(10)^2+20=a*100+20. Subtracting 20 from both sides, we get -12=100*a. Next, we divide 100 from both sides to get a=-12/100. Since h=0 and k=20, we have your answer!
Answer:
x-3
Step-by-step explanation:
You can factor out a 3 from both terms of 3x^2 - 9x to get
3(x^2 - 3x)
