Define "counterexample."

2 answers:

8 0

A "Counterexample is an example that opposes or contradicts an idea or theory. For example, the prime number 2 is a counterexample to the statement "All prime numbers are odd."

IRISSAK [1]3 years ago

7 0

<span>an example that opposes or contradicts an idea or theory.</span>

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So hmm check the picture below

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\\
v_o=\textit{initial velocity of the object}\\
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-----------------------------\\\\
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a)

well, clearly is 80 ft/s

b)

when t = 1? well 80(1)

c)

in the picture, x-axis is the time and y-axis is the height
so, it reaches its maximum at the vertex, after "x" seconds

$\bf \begin{array}{lcccll}
h(t)=&-16t^2&+80t&+3\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
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