543,100.....543,200......543,300
10% of 80 = 8
80 - 8 = 72
if they are 10% off, the contact lenses will cost $72
This construction called a pencil of lines. That figure can have 3,4,5.... any number of straights lines. The main rule is their common point. And it looks like spokes of a wheel. Here you can find a lot of vertical angles and rays.
so, you'd end up with a pyramid with a volume "one sixteenth" of the original then
now, the original had a volume of 1536, the quarterized version will then just be one sixteenth of that, or 1536 * 1/36
I hope this helps you
1)
f (2)=2.2^2-3.2-7
f (2)=8-6-7
f (2)= -5
2)
f (2)=2.2^2-3.2+7
f (2)=8-6+7
f (2)=9
