1.) and 4.) are linear equations. 3.) doesn't work because it has x^2 which makes it impossible for it to be linear(it will make it a parabola) and 2.) I an mot sure where x is and if 4 is an exponent where is the base. 1.) and 2.) work because if you put them in to slope form they Will make a line. 1.) y-4=-8(x-1) y-4=-8x+8 y=-8x+12
