which are the coordinates of F the image with a dilation of given D(- 7, - 6), E(- 8, 3) , and F(2, 1) ?

This is so hard and it’s for a test

Add the fractions and simplify 1/2+ 1/3

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.