y = 5x - 2 is the equation of a straight line graph. What is its gradient?

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

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.