What is the equation that satifies these x and y values?

I am looking for the equation of the graph that satisfies these values.
x= 1, 2, 3, 4, 5, 6
y= 1, 3, 6, 10, 15, 21

Anonymous2012-01-17T21:15:44Z

Favorite Answer

Just take 2 of the ordered pairs and use the formulas:

y - y1 = m(x - x1) and m = (y2 - y1)/(x2 - x1)