Lucy earns dollars per week working part-time at a book store. she makes one dollar more for each book that she sells. the amount, (in dollars), that lucy earns in a week if she sells books is given by the following function.

a(b)=51+b

△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 .

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]