A raft is washed ashore onto a rock on the beach. Later in the evening the tide washes the raft further up towards the rocks by 5 m, what is the change in the height to the ground?

Diagram included in image.

is there any photos or whatever?

answer: 4 (:

step-by-step explanation:

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.