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a_sh-v [17]
3 years ago
13

An A grade will be given to students having at least 450 total test points. There are two more tests to take before the semester

is over. Write and solve an equation to determine what score she needs to average on the next two tests if each question is worth 1 point?
Mathematics
1 answer:
Taya2010 [7]3 years ago
4 0
Let p represent her present test point total, and t represent the necessary average on the next two tests.
.. p +2t ≥ 450 . . . . she wants an A grade after the next two tests
.. t ≥ (450 -p)/2 . . . her required average on the next two tests
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Step-by-step explanation:

The thrust of the question is to make sure you understand that increasing the y-coordinate of a point will move the point upward, and decreasing it will move the point downward.

That is adding a positive value "k" to x^2 will move the point (x, x^2) to the point (x, x^2+k), which will be above the previous point by k units.

If k is subtracted, instead of added, then the point will be moved downward.

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<em>Comment on the question</em>

The wording of the statement you're completing is a bit odd. If k is negative (-2, for example), this statement is saying the graph is translated down -2 units. It is not. It is translated down |-2| = 2 units. The direction of translation depends on the sign of k. The amount of translation depends on the magnitude of k.

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Answer:

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Step-by-step explanation:

Hi

We define

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