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attashe74 [19]
3 years ago
15

What is the area of a circle whose radius is r?

Mathematics
1 answer:
Evgen [1.6K]3 years ago
7 0

Answer:

Area of circle = πr^2

Area of circle when diameter is 2x; r=x

=πx^2

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----------------------------------------------------------------

Part (b) then asks you to graph the equation. Because this is a linear equation, it produces a straight line. We only need 2 points at minimum to graph any line. Let's plot (0,9) and (1,7) on the same xy grid. These two points are the first two rows of the table. Plot those two points and draw a straight line through them. The graph is below

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