<span>This characteristic of non-functions was noticed by I-don't-know-who, and was codified in "The Vertical Line Test": Given the graph of a relation, if you can draw a vertical line that crosses the graph in more than one place, then the relation is not a function.</span>
Answer:
Point A
Step-by-step explanation:
count 3.5 steps into the negative x direction(left), then count 4.5 steps into the negative y direction(down).
Answer:
Julie's bill came to $121 for the month in which she ordered 12 movies.
Step-by-step explanation:
Let x represent the number of movies ordered.
Julie: $70 + ($4.25/movie)x, and ...
Tim: $49.50 + ($5.50/movie)x
If Julie ordered 12 movies last month, then her bill came to
$70 + ($4.25/movie)(12 movies) = $70 + $51 = $121
Please be clearer about what you want here. Are you refering to Julie or to Tim or to both when you write, "an equation that best represents the amount of movies?"
Answer:

Step-by-step explanation:
Let the three sides be a, b and c respectively.
Such that:



Required
Determine the area
This is calculated as:

Where

Substitute values for a, b and c



Substitute values for a, b, c and s in




-- Approximated