The segments shown below could form a triangle.
please help

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Find the solution of system of equation y= x-4 y=4x+2

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1