Slope point form of (2,3) and has a slope of 5/2

Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

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.