Asquare field has an area of 479 ft2. what is the approximate length of a side of the field? give your answer to the nearest foot.
a. 240
b. 23
c. 22
d. 21

Hey there,

So all we really need to do for this one is 

area=LW, L=W in squaer so 479=L^2, squaer root both sides, L=W=21.88=22 rounded

so it is C

Area=legnth times width

in a square, legnth=width

area=legnth times legnth
area=479
479=legnth^2
square root both sides
21.8ft=legnth
round tonearset foot
22

answer is C

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for