Subtract the sum of 38 and - 49 from - 100​

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

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

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)