Write the equation in graphing form and the graph the shape. NO LINKS/ASSESSMENT!! 16 + x^2 + y^2 - 8x - 6y = 0

see explanation

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

Given

16 + x² + y² - 8x - 6y = 0 ( subtract 16 from both sides )

x² + y² - 8x - 6y = - 16 ( collect x and y terms together )

x² - 8x + y² - 6y = - 16

Use the method of completing the square

add ( half the coefficient of the x/y terms)² to both sides

x² + 2(- 4)x + 16 + y² + 2(- 3)y + 9 = - 16 + 16 + 9

(x - 4)² + (y - 3)² = 9 ← in standard form

with centre (4, 3 ) and r = = 3

This is a circle with centre (4, 3 ) and radius 3

it would be 6xy and -16xy.

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answer: d.) the total number of protons and neutrons is 15

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