var objects = svg.append("svg")
    .classed("objects", true)
    .attr("width", width)
    .attr("height", height);

objects.append("svg:line")
    .classed("trendline", true)
    .attr("x1", x(xMin))
    .attr("y1", y(lineIntercept + xMin*lineSlope))
    .attr("x2", x(xMax))
    .attr("y2", y(lineIntercept + xMax*lineSlope))
    .attr("stroke", colorVal)
    .attr("stroke-width", 2);