Y=3 Identify if the given line is horizontal or vertical and give its slope.

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

How do i do this activity, is appreciated

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.