If you graph 4 separate triangles with the four different points, (2,3) and (1,5) form a right triangle.
The first relation is a function, the others no
We know that
[area of the painting]=13 in* 17 in-----> 221 in²
if a<span>n artist painting at
$0.30 per --------------> 1 in</span>²
x$--------------> 221 in²
X=221*0.30------> x=$66.30
the answer is
$66.30
