The height of a cannon ball, in feet, shot from a pirate ship is given by the equation h = -0.03x* + 2.84x + 20, where x is given in seconds
After how many seconds does the cannon ball splash into the water??

after 101.25 seconds

Step-by-step explanation:

set h equal to zero and solve for 'x'

0 = -0.03x² + 2.84x + 20

I multiplied through by 100 to work with integers instead of decimals, and then I used the Quadratic Formula

9-b ± √b²-4ac) / 2a

a = -3

b = 284

c = 2000

  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.

9x