Tom's height is 1.8m.
he stands near a tree.
at 4 pm, the length of tom's shadow is 2.7m.
at 4 pm, the length of the tree's shadow is 6.3m.
what is the height of the tree?

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.