What is the equation of the line, first written in point-slope form and then written in slope-intercept form?

Point-slope form is
y - y1 = m(x - x1), where the (x1, y1) is one of the points.

First find the slope, which is change in y over change in x, or 

The example points
(x1, y1) and (x2, y2) are now
( 3, 21 ) and ( 6, 12 ).


Now plug the slope and one of the points into the formula


To write in slope-intercept form, y = mx + b, simply solve for y.

The correct answer that would best complete the given statement above would be the third option: LANGUAGE GROUP. The word "bantu" refers to a common language group. There are about 650 Bantu languages by the criterion of mutual intelligibility. Bantu is considered as a major branch of the Niger-Congo language family, which is most commonly used or spoken by Africans.