QUESTION $1$

$[15$ marks$]$

a$)$ The data in Table $1$ represent a survey report on this elevation, above sea level, of section of the UMaT campus. Using inverse distance cubed method,

i$.$ Estimate the elevation at point M with coordinates $x=65$ and $Y=137.$

ii$.$ Estimate the grade at point M $.$

Table $1$

$\backslash$table$[[$Survey point,X$,$Y$,$Elevation $(m),$Grade $(\frac{g}{t})$