Points a (-1,y) and b(5,7) lie on a circle with centre o(2, -3y). find the values of y. hence find the radius of the circle

y = 7, y = -1

Step-by-step explanation:

Since both A and B lie on the circle, their distances to the origin is the radius which will be equal.

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source

answer for #1 is c

answer for #2 is d

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