Question

Whats an equation of the line through (-1, 0) and (1, 2) in slope-intercept form.

Answer 1

slope of any line through two points is :

(y2−y1)÷(x2−x1)


now after you have found slope.

take any one point from the above two sets, and write:

(y-y1) = m(x-x1)

where (x1,y1) are the point's coordinates.