But they are just lines!
Geometry
Level
2
The intersection points of these straight lines form a triangle. What kind of triangle is this?
None of these
Equilateral
Isosceles
Right Angled
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We get (2,-2) and (-2,2) as the intersection resulting from solving for x and y using Linear Systems. The last two equations are inverse functions of each other, meaning that both lines are reflections of each other over the line x=y. Thus the triangle is Isosceles because both (2,-2) and (-2,2) are equidistant from x=y. Also an equilateral triangle is a type of an Isosceles triangle so putting it as an option is weird. If you want to, you can calculate the third point by using the fact that x=y to be sure as well, which leads to (1,1)