<h3>Answer: Graph A (horizontal line in upper left corner)</h3>
This graph is a function because it is impossible to pass a single vertical line through more than one point on this graph. Contrast this with something like graph B, and it is possible to draw a vertical line through more than one point. The same happens with C as well. Graph D is a vertical line, and any vertical line is never a function.
Algebraically, for any input x, there is only one output y assuming x is in the domain. For a graph like choice C, plugging in x = 0 leads to y = -3 and y = 3 at the same time, which shows it is not a function.
So Length * Width = 480 in. sq. L=1 1/5 or 1.2W substitute the L for 1.2W 1.2W*W=480 in sq divide both sides by 1.2 w*w= 400 W²=400 square root of both sides Width = 20 inches Length= (1.2width) or (20*1.2) Length=24 inches
