Please someone help me!!

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

△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 .

Find the area of the unshaded square