Transformations
(See Week 2 Lecture page “Transformations” for a starting point.)
Starting with the expression for the standard parabola
y = x^2
deduce the sequence of transformations needed to create the graph of the function y=-3(x-3)^2 - 5
Note: For instance, if we were given the function y = -3|x – 4| + 1 we would start with the absolute value function y = |x| and the sequence of transformations would be:
· - Shift right 4 units, yielding y = |x – 4|
· - Stretch by a factor of 3, yielding y = 3|x – 4|
· - Reflect about the x-axis, yielding y = -3|x – 4|
· - Shift upward 1 unit, yielding y = -3|x – 4| + 1
Graph each transformation in the sequence on the same set of axes.