Help with excel plot. I want ONLY the values under fold dilution on the x axis. When I plot them, it spaces them out as increasing towards 1000. I need JUST the 1.5, 2, 4, 10, 100 and 1000 values evenly spaced out on the x- axis with the corresponding y values under pH.

fold dilution 1.5 7.64 7.66 pH 7.65 7.65 7 .63 7.47 6.67 5.72 4 10 100 1000 7.62 7.45 6.65 5.7 Chart Title 200 400 600 800 1000 1200 fold dilution 1.5 7.64 7.66 pH 7.65 7.65 7 .63 7.47 6.67 5.72 4 10 100 1000 7.62 7.45 6.65 5.7 Chart Title 200 400 600 800 1000 1200