>) <span class="op">+</span>
<span class="st">  </span><span class="kw">ggtitle</span>(<span class="st">"AME of Axle Ratio on Fuel Economy (mpg) by Weight"</span>) <span class="op">+</span>
<span class="st">  </span><span class="kw">xlab</span>(<span class="st">"Weight (1000 lbs)"</span>) <span class="op">+</span><span class="st"> </span><span class="kw">ylab</span>(<span class="st">"AME of Axle Ratio"</span>)</code></pre></div>
<p><img src="Introduction_files/figure-html/unnamed-chunk-32-1.png" width="768"