graph the equation

Step-by-step explanation:

This equation represents a parabola that opens up.  

Comparing y = 5(x-1)^2 - 5 to y = a(x-h)^2 + k, we see that h = 1 and k = -5.  Thus, we know that the vertex is (1, -5).  Plot this point.  

Next, find the y-intercept.  Let x = 0 and find y:  y = 5(0 - 1)^2 - 5 = 0.  Thus, the y-intercept is at (0,0).  Plot this point.  Draw the axis of symmetry; it's the vertical line that passes thru the vertex:  x = 1.  Note that the y-intercept is 1 unit to the left of x = 1.  Reflect the y-intercept across the axis of symmetry, x = 1, obtaining (0, 2).  Plot this point.  Now you have 3 points and know that the graph is symmetrical about x = 1.  Draw a smooth curve through these three points.

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.