Question

can someone please check my work? I will give a medal and become a fan.

Answer 1

. Find the point-slope form of the equation that goes through these two points.
(1, 20) and (8, 4.5)
My Answer~
Y= y2-y1/x2-x1
(4.5-20)/(8-1)
=
-15.5/7
Rewrite -15.5/7 as (-15.5)/7
Rewrite -15.5 as -31/2
=
(-31/2)
(7/1)
Divide:
(-31/2) / (7/1)
=
-31/14
Y= -31/14x+b
(1,20) = x
20=-31/14+b
b=20+ 31/14
20*14/14=280/14
311/14=b
Y=-31/14x+311/14