So this is more of an open-ended question. You get to pick a type of function, graph it, and then show if it is a function or not.
The first step is to pick one of these functions. I have them in order from least complicated to most intricate, but you can chose any of these:
Linear:

Quadradic:

Logarithmic:

Circular:

Rational:

There are plenty of other types of functions that you can use additionally. Moving on though,
The second step is to show if it is actually a function or not. The easiest way to do this, especially since we are using graphs, is to conduct the verticle line test.
Draw a straight line from top to botom on the graph, then ask yourself "Does it pass through the function more than once?" If it does, then it is not a function, otherwise, you can safely say that the graph is a function. You are going to want to do this more than once.
I included a picture of the graph of the circular equation, and the verticle line tests for it. In the picture, you can clearly see that all of the verticle lines touch the graph more than once.
If you have any other questions, let me know.
I believe the answer would be b. I think this is because you know that the perimeter is the length times 2 and the width times 2 added together. If you do 12 times 2 you get 24. Then you subtract this from 56 because 56 is the perimeter of the whole thing. Then after this you get 32.Then divide 32 by 2 to find ONE of the widths.
Answer:
B. 
Step-by-step explanation:
Let w represent the number of weeks.
We have been given that a wrestler currently weighs 189 pounds and is losing 0.5 of a pound per week. So the weight lost by wrestler in w weeks would be
.
The total weight of wrestler after w weeks would be:

We are also told that the wrestler needs to weigh more than 165 pounds but less than or equal to 185 pounds. This means that total weight of wrestler should be less than or equal to 185 pounds and greater than 165 pounds.
We can represent this information in an inequality as:

Therefore, option B is the correct choice.
<span>The correct answer is C: 80 shares of the stock and the price of each share is $40.</span>
Answer:
cost is $4183.87
Step-by-step explanation:
given data
time t = 5 year
amount A = $1000
rate r = 6.25 % = 0.0625
to find out
how much it will cost
solution
we will apply here formula for present value of annuity that is express as
present value = amount ×
....................1
put here all these value we get cost we will pay
present value = amount ×
present value = 1000 ×
present value = 4183.869221
so cost is $4183.87