x is the variable
<em>In mathematics, a variable is a symbol; in this case, X.</em>
You divide 8644 by 8 which equals 1080.5, but since you can't have half of one person you approximate it to 1080 or 1081.
Is this algebra 1 or 2....
Answer:
<em>x</em> = Total meal cost
<em>y</em> = Total cost-plus tip
113% * <em>x</em> = <em>y</em>
Answer:
<em>The slope of the line is -1</em>
Step-by-step explanation:
<u>Slope of a Line</u>
Suppose we know a given line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated as follows:

From the table in the image, we select the points (1,4) (3,2). The slope is:

Now select two other points like (5,0) (7,-2)

Following the same procedure with any other pair of points, we'll get the very same result:
The slope of the line is -1