Answer:
not a function because the points' x-values repeats
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given the quadratic function

we have to find the leading coefficient of given quadratic equation.

The coefficient of
i.e a is known as the leading coefficient.
Comparing given equation with the standard equation, we get
a=-2

Answer:

Step-by-step explanation:
Let's solve this problem step-by-step. The library had 1,500 books in 2011. The ratio of books in 2011 and in 2012 is 1:2. Therefore, let the number of books in 2012 be
.
We have the following proportion:

Therefore, there were 3,000 books in 2012. The ratio of books in 2012 and in 2013 is 2:5. Let the number of books in 2013 be
.
We have:

Therefore, there were 7,500 books in 2013.
Answer:
You will save $14.00
Step-by-step explanation:
If the shirt is 35% off, it means that you will effectively save 35% of the price. 35% of the price in this case is 35% of 40, which is $14.00