Answer:
6. slope; midpoint; distance 7. -2/7; (-6, -8); 4√53 or 29.12 8. 0 9.Undefined
Step-by-step explanation:
6.)
m= slope
M= midpoint
d= distance
7.)
mab is asking for the slope of the line between the points. Mab is asking for the midpoint of the points. dab is asking for the distance between the points.
A= (8,-12) B= (-20,-4)
mab= y2- y1/ x2- x1= -4+12/ -20-8= 8/-28= -2/7
Mab= (x1+x2/ 2, y1+y2/ 2)= (8-20/ 2, -12-4/ 2)= (-12/2, -16/2)= (-6, -8)
dab= √(x2- x1)^2 + (y2- y1)^2= √(-20-8)^2 + (-4+12)^2= √ (-28)^2 + (8)^2= √ (-28)^2 + (8)^2= √784+64= √848= 4√53 or 29.12
8.)
The slope of a horizontal line is always 0.
9.)
A= (14,9) B= (14,3)
y2- y1/ x2- x1= 3-9/ 14-14≠ -6/0 Undefined
