Formatting Questions and a Piecewise Function Question

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1

I am trying to add a closed circle at the endpoint (-2,2) and (7,4) and a point at (1,4). Open circles at (1,2) and (5,1). Could anyone help me??

2 x+1 -1.5*x+8.5 .5*x-1

Here is the link to my file. This is created by Bryan Passwater. Document (Big 10)

2

Hi, Nick!

The solution is to use the <endpoint /> component. It has an open attribute that defaults to false (so it renders as a filled circle by default). If you specify open or open="true", then it renders as an open circle.

For example, <endpoint open>(3,4)</endpoint> will render an open circle at (3,4). <endpoint>(5,6)</endpoint> (or equivalently <endpoint open="false">(5,6)</endpoint>) will render a closed circle at (5,6).

3

Thank you, however, when I try any of the code mentioned, my piecewise function does not render an open or closed point.

4

The piecewise function does not yet have the ability to render open or closed circles. You’d need to add the <endpoint> outside the piecewise function and then it will add them on top. The piecewise function component can currently just draw curves.

Something like:

<graph>
  <piecewiseFunction>
    <function domain="(-2, 1)">2</function>
    <function domain="[1, 3]">x+1</function>
    <function domain="(3, 5)">-1.5*x+8.5</function>
    <function domain="(5,7)">.5*x-1</function>
  </piecewiseFunction>
  <endpoint>(-2,2)</endpoint>
  <endpoint open>(1,2)</endpoint>
  <endpoint open>(5,1)</endpoint>
  <endpoint>(7,4)</endpoint>
</graph>
5

Thank you! It needed to go after the piecewise function