Function: 12+0.5x
12+0.5x=18.5
0.5x=6.5
x=13 days
Answer:
.
Step-by-step explanation:
.
Set up a proportion:
y = 35 when x = 7
y = ? when x = 10
To get x from 7 to 10, you have to multiply by
. Therefore, you do the same to 35, and you get:

And your answer is 50 :)
Slope of a line contatining the points (x1,y1) and (x2,y2) is
(y2-y1)/(x2-x1)
so slope between (-6,3) and (2,-5) is
(-5-3)/(2-(-6))=(-8)/(2+6)=-8/8=-1
the slope is -1