Perpendicular lines have an opposite reciprocal slope, therefore, the slope of the perpendicular line is:
-1/7
So far, y = -1/7x + b. Now we need to plug in (7, 7) into x and y for our equation.
7 = -1/7(7) + b
Simplify the right side
7 = -1 + b
Add 1 to both sides
8 = b
The equation of the perpendicular line is:
y = -1/7x + 8
Quotient: 5x+5
Remainder: -5
The diameter of circle B is 50 cm.
Step-by-step explanation:
Given,
The circumference of circle A = 314.159 ft
Diameter of Circle B is half of the diameter of circle A.
Let, the radius of circle A is r
To find the diameter of circle B
Formula
Circumference of a circle of radius r = 2πr
According to the problem,
2πr = 314.159
or, r = 
= 50 (approx)
So,
The diameter of circle A = 2×50 cm = 100 cm
The diameter of circle B = 50 cm.