Question

find an equation of the line described (3,7) (0,0)

Answer 1

The formula of the line is
y=mx + b
The likes goes through the point (0,0)
that means that y-int = 0, b=0
y=mx
So we need to find only slope.

$m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}} = \frac{7-0}{3-0} = \frac{7}{3}$

$So, y= \frac{7}{3} x$