Hi yes i need help This is the 2 one i need to do

△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 .

Consider the function f(x)=-5x+3 what is f(-2)

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?