Question

2. a. There is a new family called the Grump family. Mr. Grump's rule is (x,y). Circle the rules that

his family members in red. Circle the imposters in blue.
(3x,3y)
(2x,y)
(x,4y)
(4x,4y)
(6x, 5y)
(9x, 9y)
(0.3x, 0.3Y)

Answer 1

Assuming that the rule "(x, y)" means that both coordinates are multiplied by some factor x and y respectively, the rules that follow the Grump family's rule are:

(3x, 3y)
(2x, y)
(x, 4y)
(4x, 4y)

The rules that do not follow the Grump family's rule are:

(6x, 5y)
(9x, 9y)
(0.3x, 0.3y)

Therefore, the family members that follow Mr. Grump's rule are in red, and the imposters that don't follow the rule are in blue:

Red: (3x, 3y), (2x, y), (x, 4y), (4x, 4y)
Blue: (6x, 5y), (9x, 9y), (0.3x, 0.3y)

Answer 2

Red: (3x,3y) (2x,y) (x,4y) (4x,4y)
Blue: (6x, 5y) (9x, 9y) (0.3x, 0.3Y)