Answer:
The proportionality constant is 2/5
Step-by-step explanation:
Here, we want to get the proportionality constant
Let us view the two points as being points on a line
The constant of proportionality will be the slope of the line that connects the two points
Mathematically, we can use the formula for the slope of a line
We have this as;
m = (y2-y1)/(x2-x1)
(x1,y1) = (20,8)
(x2,y2)= (25,10)
m = (10-8)/(25-20) = 2/5
You can tell if two lines are parallel, perpendicular, or neither by looking at their slopes and :
- If , i.e. if the two lines have the same slope, the lines are parallel
- If , the lines are perpendicular
- In all other cases, the lines are not parallel nor perpendicular.
Given two points of a line, the slope is defined as the ratio between the y and x variation:
So in this case, we have
Since the two slopes are the same, the two lines are parallel.
Answer:
Step-by-step explanation:
15×20+15×x
Answer:
x
−
a
)
2
+
(
y
−
b
)
2
=
r
2
Step-by-step explanation: