The answer is (-1,-3)
All you have to do is divide your point by 4, since it is a fraction. if its not then multiply.
Answer:
7.8
Step-by-step explanation:
distance formula : 
where the x and y values are derived from the given points
here the given points are (11,3) and (6,9)
<u>assigning variables</u>
(x1,y1) = (11,3) so x1 = 11 and y1 = 3
(x2,y2) = (6,9) so x2 = 6 and y2 = 9
<u>plugging in values into formula</u>
recall formula 
==> plug in x1 = 11 , y1 = 3 , x2 = 6 and y2 = 9

==> subtract values in parenthesis

==> evaluate exponents

==> add 25 and 36
( approximately )
Combine Like Terms:<span>
=<span><span><span>6+<span>5x</span></span>+<span>7x</span></span>+3</span></span><span>
=<span><span>(<span><span>5x</span>+<span>7x</span></span>)</span>+<span>(<span>6+3</span>)</span></span></span><span>
=<span><span>12x</span>+<span>9
</span></span></span>
5.25 ft
just divide 20/5 and that equal 4. so to find the height of the man you divide 21 by 4