Quiz on the first unit grade 9

If n ( X ) = 3 , Y = { 1 , 2 , 3 } , then : n ( X x Y ) = .........................................

• 3

• 5

• 7

• 9

The point ( - 3 , 4 ) lies in the ........................ quadrant

• First

• Second

• Third

• Fourth

If ( X - 4 , 3 ) = ( 0 , 3 ) , then : X = .......................

• 4

• 3

• 2

• 1

n ( X ) = 2 , n ( X x Y ) = 6 , n ( Y ² ) = .......................

• 4

• 9

• 16

• 12

If ( 2 , Y ³ + 1 ) = ( 2 , 65 ) , then : Y = ................................

• 6

• -8

• 8

• 4

If : f ( X ) = 5 , then : f ( - 5 ) = ........................

• -5

• -10

• 25

• 5

• 15

• 21

• 7

• 10

If the point ( x , y ) lies on the second quadrant , then the point ( - x , y² ) lies on the .................. quadrant .

• first

• second

• third

• fourth

• 1

• 2

• 3

• 7

• 8

• 9

• 11

• 12