Question

If (4, 19) is a solution of the equation y = ax +3, then a =
(a) 3
(b) 4
(c) 5
(d) 6​

Answer 1

ur ans is 4 ........ here only we have to put the values

Answer 2

we know,

coordinate of a point = ( x , y )

=> here , coordinates = ( 4 , 19 )

Hence , x = 4 & y = 19

now , putting these values in equation ,

=> y = ax + 3

=> 19 = 4a + 3

=> 16 = 4a

=> a = 4