Given the graph of y=f(x), shown as a red dashed curve, drag the green movable points to draw the graph of y=f(−x).

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

but there’s no any figure there!

=

x=0.8898305 is the answer to that equation