David leaves the house to go to school he walks 200m west and 125 m north how far is he from his starting point

235.8

Step-by-step explanation:200²m +125²=55625

c²=55625

c=√55625≈235.8

David is 235.85 meters away from starting point.

Step-by-step explanation:

To get the distance David is from starting point, we will apply the Pythagoras theorem.

Let the distance he is away from starting point be x.

=>

=>

x =

= 235.85 meters

Therefore, David is 235.85 meters away from starting point.

Note: If you need to round this to nearest whole number, it will be 236 meters.

  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.