    

<svg xmlns="http://www.w3.org/2000/svg" viewBox="250 -100 500 750" >

<!--eixo Ox-->
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<!--eixo Oy-->
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<!--Traços interrompidos verticais-->
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<line x1="150" y1="0" x2="150" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="200" y1="0" x2="200" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="250" y1="0" x2="250" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="300" y1="0" x2="300" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="350" y1="0" x2="350" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="400" y1="0" x2="400" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="450" y1="0" x2="450" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="500" y1="0" x2="500" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="550" y1="0" x2="550" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="600" y1="0" x2="600" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="650" y1="0" x2="650" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="700" y1="0" x2="700" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="750" y1="0" x2="750" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="800" y1="0" x2="800" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="850" y1="0" x2="850" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="900" y1="0" x2="900" y2="400" stroke='#AAAAAA' stroke-dasharray="5,5" />

<!--Traços interrompidos horizontais-->
<line x1="0" y1="50" x2="900" y2="50" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="0" y1="100" x2="900" y2="100" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="0" y1="150" x2="900" y2="150" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="0" y1="200" x2="900" y2="200" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="0" y1="250" x2="900" y2="250" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="0" y1="300" x2="900" y2="300" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="0" y1="350" x2="900" y2="350" stroke='#AAAAAA' stroke-dasharray="5,5" />
<line x1="0" y1="0" x2="900" y2="0" stroke='#AAAAAA' stroke-dasharray="5,5" />

<!--Origem O-->
<circle cx="0"   cy="400" r="3"/> <text x="-30" y="419">(0,0)</text>

<!--Escala do eixo Ox-->
<line x1="50" y1="397" x2="50" y2="403" stroke='black' stroke-width='2'/>    <!--abcissa 50--><text x="42" y="422">50</text> 
<line x1="100" y1="397" x2="100" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 100--><text x="88" y="422">100</text>
<line x1="150" y1="397" x2="150" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 150--><text x="138" y="422">150</text>
<line x1="200" y1="397" x2="200" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 200--><text x="188" y="422">200</text>
<line x1="250" y1="397" x2="250" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 250--><text x="235" y="422">250</text>
<line x1="300" y1="397" x2="300" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 300--><text x="288" y="422">300</text>
<line x1="350" y1="397" x2="350" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 350--><text x="338" y="422">350</text>
<line x1="400" y1="397" x2="400" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 400--><text x="388" y="422">400</text>
<line x1="450" y1="397" x2="450" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 450--><text x="438" y="422">450</text>
<line x1="500" y1="397" x2="500" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 500--><text x="488" y="422">500</text>
<line x1="550" y1="397" x2="550" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 550--><text x="538" y="422">550</text>
<line x1="600" y1="397" x2="600" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 600--><text x="588" y="422">600</text>
<line x1="650" y1="397" x2="650" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 650--><text x="638" y="422">650</text>
<line x1="700" y1="397" x2="700" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 700--><text x="688" y="422">700</text>
<line x1="750" y1="397" x2="750" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 750--><text x="738" y="422">750</text>
<line x1="800" y1="397" x2="800" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 800--><text x="788" y="422">800</text>
<line x1="850" y1="397" x2="850" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 850--><text x="838" y="422">850</text>
<line x1="900" y1="397" x2="900" y2="403" stroke='black' stroke-width='2'/>  <!--abcissa 900--><text x="888" y="422">900</text>

<!--Escala do eixo Oy-->
<line x1="-3" y1="0" x2="3" y2="0" stroke='black' stroke-width='2'/>     <!--ordenada 450--><text x="-30" y="0">450</text>
<line x1="-3" y1="50" x2="3" y2="50" stroke='black' stroke-width='2'/>   <!--ordenada 400--><text x="-30" y="54">400</text>
<line x1="-3" y1="100" x2="3" y2="100" stroke='black' stroke-width='2'/> <!--ordenada 300--><text x="-30" y="104">300</text>
<line x1="-3" y1="150" x2="3" y2="150" stroke='black' stroke-width='2'/> <!--ordenada 250--><text x="-30" y="154">250</text>
<line x1="-3" y1="200" x2="3" y2="200" stroke='black' stroke-width='2'/> <!--ordenada 200--><text x="-30" y="204">200</text>
<line x1="-3" y1="250" x2="3" y2="250" stroke='black' stroke-width='2'/> <!--ordenada 150--><text x="-30" y="254">150</text>
<line x1="-3" y1="300" x2="3" y2="300" stroke='black' stroke-width='2'/> <!--ordenada 100--><text x="-30" y="304">100</text>
<line x1="-3" y1="350" x2="3" y2="350" stroke='black' stroke-width='2'/> <!--ordenada 50--><text x="-22" y="354">50</text>


<!--figura 1-->
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<!--figura 1-->
<!--<polyline points="300,150 500,350 300,350" style="fill:none;stroke:black;stroke-width:3"/>-->

<!--Título-->
<text x="335" y="-45" font-size="18">REFERENCIAL CARTESIANO</text>

<!--Nome-->
<text x="870" y="440" font-size="18">JLP</text>

</svg>
