What do the five key points of each graph represent?

If lmn=xyz, which congruences are true by cpctc? check all that apply

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

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