1.+.07+.005 this is the answer you msy be looking to.
To solve take circumference of the lamp shade( 2pi(r) or pi(d) ) so circumference is 12pi.
Then multiple by hight or altitude to get surface area ( circumference x height)
SA =72pi or ~226.19 in^2
If you are putting material on the top of lamp to, add pi(r)^2 or 36pi= ~113.10 in^2
Yeah. You basically have to look at every x value and see if for every x value, is there ONLY one y-value. So in your example, it is a function because every x value has only one y value. Let’s say you had (1,3) and (1,5). That would not be a function because the x value of 1 has TWO y values (3 and 5), therefore it is not a function.
That’s how you can easily spot if something is a function by just looking at a handful of ordered pairs. I hope this makes sense.
The ice cream will cost $4.50. Substitute 5 in for x and simplify.
2 + 0.5(5) = 4.50
