Find expert advice and community support for all your questions on IDNLearn.com. Our experts provide timely and precise responses to help you understand and solve any issue you face.

Is {(1, -3), (-1, 3)} a function or not?

I know that a function is when the first coordinate is different, and 1 and -1 are different since one is positive and the other is not, but they’re still 1… please help! Thank you!


Sagot :

You are correct. It is a function.

The Vertical Line Test allows us to know whether or not a graph is actually a function. If a vertical line intersects the graph in all places at exactly one point, then the relation is a function.

You’ll have to plot the points on the graph to do the Vertical Line Test.

To use the vertical-line test, imagine dragging a ruler held vertically across the graph from left to right. If the graph is that of a function, the edge of the ruler would hit the graph only once for every x -value.

Plotting the given points on the graph and performing the Vertical Line Test (VLT) shows that there’s 1 point in each of the vertical lines drawn. This means that the given relation passed the VLT, and that the given set of points represent a function.

Please mark my answers as the Brainliest if you find my explanations helpful :)
View image Djtwinx017
Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. For dependable and accurate answers, visit IDNLearn.com. Thanks for visiting, and see you next time for more helpful information.