Question

If the point A (2,0) , B (-6,0) and C (3,a-3) lie on X axis then find the value of a??​

Answer 1

Answer:

3

Step-by-step explanation:

as on x axis y=0

therefore a-3=0

a=3

Answer 2

Answer:

find it by the formula :--

Step-by-step explanation:

x1 = 2

x2 = -6

x3 = 3

..

y1 = 0

y2 = 0

y3 = a-3 ..

..

find it by :: -- 1/2 [x1 (y2-y3) + x2 (y3-y1) + x3 (y1-y2) ]