Question 1195057
Try drawing the triangle with a vertex at ({{{0}}}, {{{0}}}), another at ({{{0}}}, {{{4}}}), and the last at ({{{5}}}, {{{0}}}).


{{{ drawing( 600, 600, -10,10, -10, 10,
circle(0,0,.12), locate(0.3,-0.3,A(0,0)),
circle(0,4,.12), locate(0.3,4.3,B(0,4)),circle(5,0,.12), locate(5,-0.3,C(5,0)),

green(line(0.2,0,0,4)),green(line(0,0.2,5,0)),green(line(5,0,0,4)),
graph( 600, 600, -10,10, -10, 10,0)) }}}


Transform by changing the coordinates ({{{x+4}}}, {{{y-3}}}):
so the ({{{0}}}, {{{0}}})  becomes A'=({{{4}}},{{{ -3}}}), 
the  ({{{0}}}, {{{4}}}) becomes B'=({{{4}}},{{{1}}}), and 
the ({{{5}}}, {{{0}}}) becomes C'=({{{9}}},{{{ -3}}})


{{{ drawing( 600, 600, -10,10, -10, 10,
circle(0,0,.12), locate(0.3,-0.3,A(0,0)),
circle(0,4,.12), locate(0.3,4.3,B(0,4)),circle(5,0,.12), locate(5,-0.3,C(5,0)),
green(line(0.2,0,0,4)),green(line(0,0.2,5,0)),green(line(5,0,0,4)),
circle(4,-3,.12), locate(4,-3,imgA(4,-3)),
circle(4,1,.12), locate(4,1,imgB(4,1)),
circle(9,-3,.12), locate(9,-3,imgC(9,-3)),

blue(line(4,1,4,-3)),blue(line(4,1,9,-3)),blue(line(4,-3,9,-3)),

graph( 600, 600, -10,10, -10, 10,0)) }}}