What is the equation of a line that is perpendicular to the y-axis and goes through point (-1,-8).

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Find the amplitude of a sinusoidal function that models this temperature variation

What is the perimeter of a rectangle if the length is 5 and the width is x?