How to make the Highcharts chart always show Plotlines?

Question

I would like to know how to make the chart based on the value of PlotLines, without setting a minimum and maximum size for the chart. For example, I have an X-axis pro Plotline of value 30 and another Y-axis pro of value 70. I did not set maximum or minimum value for the graph, but when I have a point for example, with the axes smaller than the value of Plotlines, it does not display.

Does anyone know how to solve?

Note: Use of Graphic Scatter

Below is the code of the X and Y axes:

xAxis: {
            title: {
                enabled: true,
                text: 'Audit e DDD'
            },
            //max: 200,
            //min: -200,
            //startOnTick: true,
            //tickInterval: 50,                
            //endOnTick: true,                
            showLastLabel: true,
            gridLineWidth: 1,
            plotLines:[{
                value: 70,
                color: 'red',
                width: 1,
                label:{
                    text: '70',
                    align: 'left'
                }
            }] 
        },
        yAxis: {
            title: {   
                enabled: true,             
                text: 'Visitação e conhecimento'
            },
            //max: 200,
            //min: -200,
            //startOnTick: true,
            //tickInterval: 50,                
            //endOnTick: true,                
            showLastLabel: true,
            plotLines:[{
                value: 30,
                color: 'blue',
                width: 1,
                label:{
                    text: '30',
                    align: 'left'

                }                    
            }]                
        },

Answer 1

RESOLVED

I solved the problem by adding an initial series, since my data is dynamic, setting the values of the axes that correspond to each value of plotLine, a pro X and another pro Y, so it will always load the graph with the plotLines defined.