Which coordinates are a function

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Published by Frederick Daniels Modified over 6 years ago. B 6,2 , 3,5 , 3,10 , -1, 7 C 6,-4 -3,-3 , -2, -2 , 6, -8 D 8,4 , 8,-4 , 2,8 , 3,2 HINT: Look at the x-values, they cannot repeat if the set of coordinates make a function. Plug x-value and you should get the corresponding y value. Recommend using y-intercept 0,y or x-intercept x,0 XY Which inequality can be used to find m, the minimum number of months it will take Ms. Long to save for her television?

The replacement set for the independent variable is 2, 5, 10, The y-coordinate, f x , is a real number--specifically, it is the ratio that defines the value of a given trigonometric function. In the next section we'll see what the graphs of the six trigonometric functions look like. SparkTeach Teacher's Handbook. Summary Graphing Functions. An ordered pair contains the coordinates of one point in the coordinate system.

A point is named by its ordered pair of the form of x, y. The first number corresponds to the x-coordinate and the second to the y-coordinate. To graph a point, you draw a dot at the coordinates that corresponds to the ordered pair. It's always a good idea to start at the origin. The x-coordinate tells you how many steps you have to take to the right positive or left negative on the x-axis.

And the y-coordinate tells you have many steps to move up positive or down negative on the y-axis. Connect and share knowledge within a single location that is structured and easy to search. I have a question about some notation which puzzles me a lot. My question is about the last line above. I'm sure it is just a matter of notation, but anyhow I want to grasp the logic behind this kind of notation since it appears frequently and it is not very convenient if one has to think about the notation more often than should be needed.

Would someone be so kind to explain it to me? If we want, e. I think that an example is necessary. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more.