Question

The slope of the line joining (12, 3), (4, a) is 1

8

. The value of ‘a’ is _________

(a) 1 (b) 4 (c) -3 (d) 2​

Answer 1

Answer:

slope of two coordinates (x1 , y1) and (X2 , y2) is

(y2 - y1)/( X2 - x1)

now here slope ===> 3-a/12-4 = 18

(3-a)/8 = your slope

hey bro your slope value is not clear .

whether it is 1 , 8 or 18....

any way substitute that value in the your slope place and you will get a