What is the equation of the line through the origin and (2,5)

y = 5/2 x

Step-by-step explanation:

First we need to find the slope

m = (y2-y1) / (x2-x1)

= (5-0) / (2-0)

= 5/2

We know the y intercept is 0 since it goes through the origin

y = mx+b

y = 5/2 x + 0

y = 5/2 x