Question 616215
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi, 
For the parabola passing through the points (1,1) (3,13) (5,49)
 a + b + c = 1
 9a + 3b + c = 13
25a + 5b + c = 49
 a = 3, b = -6 and c = 4
 y = 3x^2 -6x + 4
 OR
 y = 3(x-1)^3 + 1 Vertex(1,1)
{{{drawing(300,300,   -50,50,-50,50,
 grid(1),
circle(1, 1,0.8),
circle(5, 49,0.8),
graph( 300, 300, -50,50,-50,50,0,3x^2 -6x + 4))}}}