Which of the following does not represent a function?

Mathematics

1 answer:

Inessa05 [86]3 years ago

4 0

Answer:

C. graph of an ellipse with y intercepts negative 7 and positive 7

Explanation:

An ellipse is an oval shape. In order to represent a function, a graph must pass the vertical line test; that is, a vertical line drawn through any area of the graph must only pass through one point. In an oval, or ellipse, a vertical line will pass through twice; this means it is not a function.

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What is the height of the building pictured below if its shadow is 100 ft. long?

Evgen [1.6K]

Yeah.. baby, do the SOH CAH TOA with the hula hoop

$\bf 
sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad \qquad 
% cosine
cos(\theta)=\cfrac{adjacent}{hypotenuse}

\\ \quad \\
% tangent
tan(\theta)=\cfrac{opposite}{adjacent}
$

so.. hmmm we have in the picture, an angle, and two sides,
actually, is the "adjacent" side, and the "opposite"

so.. which of those ratios give us only
the angle
the adjacent side
the opposite side?

ahhha!, is Ms tangent
so $\bf tan(\theta)=\cfrac{opposite}{adjacent}\implies tan(42^o)=\cfrac{h}{100}$

solve for "h"

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3 years ago

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____ [38]

Answer:

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