Find the range and the first and third quartiles for the data set. 45,42,86,13,74,47,46

To find the range subtract from the biggest to the lowest, so it would be 86 - 13 which equals to 73.

Your lower or first quartile would be 42 and your upper or third quartile would be 74.

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )