The function f(t) = t2 + 12t − 18 represents a parabola.

part a: rewrite the function in vertex form by completing the square. show your work.

part b: determine the vertex and indicate whether it is a maximum or a minimum on the graph. how do you know?

part c: determine the axis of symmetry for f(t).

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?

Find two numbers if their sum is 91 and the ratio is 6: 7?