Question 79305
<pre>
  graph y=-2 and 3x-y=-1

             and name if it has no solution, one solution, or infinitely many solutions if it has one solution name it


Graph y = -2

{{{graph (200, 200, -5, 7, -5, 4, -2)}}}



Graph 3x - y = -1
         We will use slope - intercept form y = mx + b, where m=slope
and b = y-intercept

         Rewrite the equation 3x - y = -1 to y = mx + b
                                   y = 3x + 1

m = 3 and b = 1, point is located (0,1)

first points is located (0,1). using the slope 3 or 3/1, we can locate the 
second point then draw a line passing through the two points. slope 3/1 means 
move 3 units upward and 1 unit to the right.

Here is the graph

{{{graph (200, 200, -5, 7, -5, 4, 3x + 1)}}}



GRaph them in one coordinate plane.

{{{graph (200, 200, -5, 7, -5, 4, -2, 3x + 1)}}}



One solution (-1,-2). It is where the two graph intersect.