2 years ago

Determine the center and radius of the following circle equation: x2 + y2 + 4x + 20y + 68 = 0

Mathematics

1 answer:

sammy [17]2 years ago

7 0

Answer:

center( -2,-10)

radius:6

Step-by-step explanation:

I hope this helps.

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Write the equation of the line with a slope of 1/6 that contains (12,-7)

tatiyna

$\bf (\stackrel{x_1}{12}~,~\stackrel{y_1}{-7})~\hspace{10em} slope = m\implies \cfrac{1}{6} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-7)=\cfrac{1}{6}(x-12) \\\\\\ y+7=\cfrac{1}{6}x-2\implies y=\cfrac{1}{6}x-9$