hello
i have a chart about child vaccination consist of an x,y plane witha a green line pass threw the chart we call it safty zone
this chart represent the child vaccination from the age of (0-5) years, the y plane represent the wieght of the child and the x plane represent the age, the safty zone that i mensioned it above the childs wieght and and age we prefer them to be in the safty zone so the child can be healthy
now i need your help me if you please to build a program in visual fox pro that when i give any age and weight give me the exact location of the point in the chart.
i would be thankful to you.