Question 606681
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
how could you get an equation from graphing the coordinates?(-1,1),(2,5)
1. Plot Points and connect with line y.
Note: y = mx + b, where m is the slope and b the y-intercept
2)Determine where the line crosses the y-axis: 2 1/3
3) Determine the slope: 
    going from (-1,1) to (2,5) one goes 4up and 3 over..Slope = 4/3
 y = (4/3)x + 7/3 or in Standard form:  4x-3y = -7
{{{drawing(300,300,  -6, 6, -6, 6,  
 grid(1),
circle(-1, 1,0.3),
circle(2, 5,0.3),
graph( 300, 300, -6, 6, -6, 6,  0,(4/3)x + 7/3))}}}