Answer with explanation:
f(x)=y=2 x
To plot the graph of this function, that is linear function , we need two distinct points.
To find two distinct points, put, x=0 in the above equation
we get, y=2×0=0
So, one point is ,(0,0).
To find another point, put, x=1
We get, y=2 ×1=2
So, another point is , (1,2).
So, to obtain the equation of this line, join , (0,0) and (1,2) and produce it from both ends.
To obtain the reflection of this line, Replace x by -x in the equation of line.
⇒ y =- 2 x, is the equation of reflection of , y=2 x.