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Thnut236
04.01.2021 •
Mathematics
PLZZZ HELPPP Read the excerpt from "The New Marvel in Photography" by H. J. W. Dam.
In all the history of scientific discovery there has never been, perhaps, so general, rapid, and dramatic an effect wrought on the scientific centres of Europe as has followed, in the past four weeks, upon an announcement made to the Würzburg Physico-Medical Society, at their December meeting, by Professor William Konrad Röntgen, professor of physics at the Royal University of Würzburg. The first news which reached London was by telegraph from Vienna to the effect that a Professor Röntgen, until then the possessor of only a local fame in the town mentioned, had discovered a new kind of light, which penetrated and photographed through everything. This news was received with a mild interest, some amusement, and much incredulity; and a week passed. Then, by mail and telegraph, came daily clear indications of the stir which the discovery was making in all the great line of universities between Vienna and Berlin. Then Röntgen's own report arrived, so cool, so business-like, and so truly scientific in character, that it left no doubt either of the truth or of the great importance of the preceding reports. . . .
Exactly what kind of a force Professor Röntgen has discovered he does not know. As will be seen below, he declines to call it a new kind of light, or a new form of electricity. He has given it the name of the X rays.
The central idea of this excerpt is developed through
scientific proof.
cautious excitement.
medical facts.
Solved
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Ответ:
cautious excitement
Step-by-step explanation:
Ответ:
f(x) = 2(x + 1)² + 2
Step-by-step explanation:
The minimum of the graph of the quadratic function is located at (-1,2) point.
The point (2,20) satisfies the function.
So, the only equation of function that satisfy the point (2,20) is f(x) = 2(x + 1)² + 2 (1)
Now, check the minimum point.
The equation can rearranged to 2(x + 1)² = y - 2
⇒
So, this is an equation of parabola having vertex at (-1,2) and the axis of the parabola is parallel to positive y-axis.
Therefore, (-1,2) will be the minimum point.
Hence, the function (1) will be the answer.