How would I graph this function on a TI-83/84?

Test Preparation
1

<p>f(x)= 3-x, x ≤ 0; 3+0.5x, x>0</p>

<p>thanks</p>

2

<p><a href="http://mathbits.com/MathBits/TISection/Precalculus/piecewise.htm%5B/url%5D"&gt;http://mathbits.com/MathBits/TISection/Precalculus/piecewise.htm&lt;/a&gt;&lt;/p>