Question

Give the geometric representation  of the following equation
(a) on the number line    (b) on the Cartesian plane :   2x + 9 = 0 

Answer 1

2x  + 9  = 0 

2x = -9 

` x = (-9) / 2  = - 4  . 5  `

Point A represents  - 4  . 5 on number line
On Cartesian plane, equation represents all points on  y  - axis for which x = - 4.5