Grade 8 Final test of the 8th Grade Good luck!Question 1How much is ? Question 2What do you find when you factorize ? Question 3What are the solutions of the ininequality ? x > -4 x < -4 x < 4Question 4How is called a function written ? An exponential function An affine function A linear functionQuestion 5What do you find if you write with only one square root the number ? Question 6What are the solutions of the system ? x = - 3 and y = - 3 x = 1 and y = 2 x = 2 and y = 3Question 7What is the median number of 3, 3, 2, 0 ? 2 2,5 3Question 8A mountain is 400m high. If you unfold your arm which measures 1 meter, you succeed in hiding it with your hand which measures 0,06m. How far is the mountain? 6,2 kms 6,7 kms 6,9 kmsQuestion 9The moon has a diameter of 3000 kms. It is à 384000 kms away from us. In which angle can we see it when it's full (we admit that we can draw a rectangular triangle until the moon)? 0,45° 0,5° 0,55°Question 10In a mark, we have A(1;1) and B(2;7). How much is the length AB? 6