Atravel agency made the table below to represent the profits it make on a certain vacation package.

number of people vs. profit
number of people who buy the package, x
profit per person (in dollars), f(x)
10 500
20 800
30 900
40 800
50 500

which of the following explains the best model for the data in the table?

a)an absolute value function since the values increase and then decrease
b)an exponential function since the ratio of the y-values are about the same.
c)a linear function since the function changes at a rate of 30 dollars per person
d)a quadratic function since the points are symmetric about the line x = 30

D) a quadratic function since the points are symmetric about the line x = 30

Step-by-step explanation:v

When we plot the given points on the graph we see that,

A parabola appears opening downwards about the line x = 30 because the point (10,500) is symmetric to point (50,500) and point (20,800) is symmetric to point (40,800).

Since, Parabola is the shape of graph of quadratic function.

Hence,  Option D) a quadratic function since the points are symmetric about the line x = 30 is correct.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

a

step-by-step explanation:

jjddbdhid r