Grade 9
Final test of the 9th Grade
Good luck!
Question 1
What is the intersection of the intervals
and
?
Question 2
Determine the solutions of
Question 3
The solution(s) of the equation
are :
x = -5
x = -5
x = -5 ou x = 5
Question 4
Is the function
even ?
yes
no
Question 5
Determine the set of solutions of the following inequation
.
Question 6
How much is
?
Question 7
Are the vectors
and
collinear ?
yes
no
Question 8
Are the points
on a line ?
yes
no
Question 9
Are two orthogonales lines always perpendicular ?
yes
no
Question 10
In a class, 5 pupils are between 1,50m and 1,60 m tall, 12 pupils are between 1,60m and 1,70m tall, 15 pupils are between 1,70m and 1,80m tall. What is approximately the average height of the pupils ?
1,64 m
1,66 m
1,68 m