What is the equation of the line (1,9) (0,0)

y = 9x

Step-by-step explanation:

First find the slope

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

= (0-9) / (0-1)

-9/-1

9

The y intercept is 0 since the y value is 0 when x=0

The slope intercept form is y = mx+b where m is the slope and b is the y intercept

y = 9x + 0

y = 9x