code: function drawAxis() {
              svg.select('.x-axis-group .axis.x')
                  .attr('transform', `translate(0, ${chartHeight})`)
                  .call(xAxis);
  
              svg.select('.y-axis-group .axis.y')
                  .call(yAxis);
  
              drawAxisLabels();
          }
docs: Draws the x and y axis on the svg object within their
  respective groups along with their axis labels
  @return {void}
  @private