LOOK AT THE PHOTOS BEFORE ANSWERING

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

1. what is the measure of ∠abc? what is the measure of ∠abd?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6