Answer:
It is an example of a nonlinear function.
Step-by-step explanation:
Use a graphing calculator or graph the points and try to make a line, as it will not work
Answer:
B
Step-by-step explanation:
In this case the method of there being two of the same x values it is NOT a function. Because then there will be two points on top of each other resulting in it not passing the vertical line test on a graph.
Answer:
There are 260 seats in economy class and 100 seats in business class
Step-by-step explanation:
To solve this problem we first have to calculate the fraction of economic and business seats with respect to the total
We are told that every 13 seats in economy class there are 5 seats in business class
13 + 5 = 18
This means that if there are 18 seats 13 will be economic and 5 business
economic seats = 13/18
business seats = 5/18
To find out the number of seats in the airplane of each class, we have to multiply the total number of seats by these fractions
economic seats = 360 * 13/18
economic seats = 260
business seats = 360 * 5/18
business seats = 100
Answer:
A, C, E
Step-by-step explanation:
By analyzing the graph, we can see that the roots are
and
.
We now want to find all equations of the form
.
This immediately gives C as 1 answer.
We can expand our equation to find other possible solutions!
By the FOIL method: 
We can then divide both sides of the equation to find that
, so A is another answer.
We can complete the square on
to find the last possible solution.
.
We can then multiply both sides of the equation by
to find that
, so E is the last answer.
The proof that the other answers don't work is left as an exercise.
So, the answers are A, C, and E, and we're done!