(1, 9) and (11,1)
slope
= (9 - 1)/(1 - 11)
= 8 /-10
= -4/5
= - 0.8
answer
slope = - 0.8
Answer:
-2
Step-by-step explanation:
to find the slope from to points you can follow this equation
m=y2-y1 / x2-x1
so plug in the points
1-3/ 1-0
-2/1
-2
C=1.56n
Should give the the total price of n pounds of blackberry
Question 1: Option B: 
Question 2: Option D: 
Solution:
Question 1:
The point on the given line are (2, 4) and (4, –2).
Slope of the given line:


m = –3.
Slope of perpendicular line = –1 ÷ Slope of the given line
Slope of perpendicular line = 
Perpendicular line passing through the point (3, 1).
Slope -intercept form using point slope formula,




Option B is the correct answer.
Question 2:
The point on the given line are (0, –3) and (2, 3).
Slope of the given line:


m = 3.
Slope of parallel lines are equal.
Slope of parallel line =3
parallel lines passing through the point (–1, –1).
Point slope formula:


Option D is the correct answer.