Answer:
Diameter of the circle is
units
Step-by-step explanation:
It is given that the vertices of the square fall on the circle.
So, the diagonal of the square is the diameter of the circle.
Also, the diagonal and the two sides of the square form a right angled triangle.
By Pythogoras theorem,

= 
= 
units
Hence, the diameter of the circle is
units
I think one is c And 2 I think is a I just use the desmos graphing calculator at desmos.com
Answer:
Step-by-step explanation:
Answer: y = 4x
Step-by-step explanation:
A proportional relationship is function that is a means of ratio.
Say, x equals 12, then y would equal 48. Or x = 5, then y = 20. Etc