Question

Given the points A (3,2) and B (-21,0) determine:

a. the slope of line AB
b. the length of AB
c. the midpoint of AB
d. an equation of AB

Answer 1

A)(y2-y1)/(x2-x1)
(0-2)/(-21-3)=-2/-24=1/12
B)sqaureroot((-2)^2+(-24)^2)=squareroot(580)=2squareroot(145)
C)((x1+x2)/2,(y1+y2)/2)=(-9,1)
D)y=1/12(x+21)