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The step graph below shows how the cost of a first class U.S. postage stamp increased from 1990 through 2010 . An open circle at the end of a line segment means the endpoint of the segment is not included. Is this the graph of a function?CAN'T COPY THE IMAGE
Yes
Algebra
Chapter 3
Graphing Linear Equations and Inequalities in Two Variables; Functions
Section 8
An Introduction to Functions
Graphs and Statistics
Equations and Inequalities
Linear Functions
Systems of Equations and Inequalities
Missouri State University
Idaho State University
Lectures
01:32
In mathematics, the absolu…
01:11
00:59
For Exercises use the foll…
00:27
Determine whether the grap…
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00:24
00:21
00:26
00:32
00:36
01:54
Graph each step function. …
so and then in this particular problem, were given the graph of a step function, and we're trying to determine whether this graph would be the graph of a function will remember. It would be a function if it passes to learn the vertical line test, meaning If I Congar a vertical line and it will only hit the graph at one point, then it is a function. However, if at any point I can grab a vertical line and the hist a graph more than one point that it will not be a function. So I didn't draw the entire graph. However, if you know this how stop function works. Ah, close circle means that point is included. However, an open circle would mean that point is not included. Well, if you know this that all these points in between our two end points it will pass the vertical I test as it will not hit another point in the ground. The only case where it looks like they line up is where we have a close circle on top of an open circle, even though there's a gap in between. Now, in this particular case, this is actually okay, because that open circle means that X value is not actually included in the function. So for all of our step functions, they are functions. So this graph one be a function.
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