Determine the concavity of f(x) = $Determine the concavity of f(x) = - 24 + 6x + 18 and identify any points of inflection. A) concave downwards on (- \infty , 8), upwards on (8, \infty ); inflection at x = 8 B) concave downwards on (- \infty , -8), upwards on (-8, \infty ); inflection at x = -8 C) concave upwards on (- \infty , 8), downwards on (8, \infty ); inflection at x = 8 D) concave upwards on (- \infty , -8), downwards on (-8, \infty ); inflection at x = -8 E) concave upwards on (- \infty , \infty ); no inflection points$ - 24 $Determine the concavity of f(x) = - 24 + 6x + 18 and identify any points of inflection. A) concave downwards on (- \infty , 8), upwards on (8, \infty ); inflection at x = 8 B) concave downwards on (- \infty , -8), upwards on (-8, \infty ); inflection at x = -8 C) concave upwards on (- \infty , 8), downwards on (8, \infty ); inflection at x = 8 D) concave upwards on (- \infty , -8), downwards on (-8, \infty ); inflection at x = -8 E) concave upwards on (- \infty , \infty ); no inflection points$ + 6x + 18 and identify any points of inflection.
A) concave downwards on (-

\infty

, 8), upwards on (8,

\infty

); inflection at x = 8
B) concave downwards on (-

\infty

, -8), upwards on (-8,

\infty

); inflection at x = -8
C) concave upwards on (-

\infty

, 8), downwards on (8,

\infty

); inflection at x = 8
D) concave upwards on (-

\infty

, -8), downwards on (-8,

\infty

); inflection at x = -8
E) concave upwards on (-

\infty

\infty

); no inflection points

Find the Ratio of the Height H to the Radius

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