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Flauer [41]
3 years ago
12

For all the following, which ones represent y as a function of x, and how do you know?

Mathematics
1 answer:
earnstyle [38]3 years ago
4 0
Only 25 and 28 are functions.

A function must have only one y value per x value. For 26, the y value of 0 and multiple others have two different y values. For 27, all x values less than 0 have multiple y values.
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What are the intercepts of x^2+y-9=0
Dmitry_Shevchenko [17]

Answer:

Zeros

x = -3   point (-3 ,0)

x = 3   point (3 ,0)

Step-by-step explanation:

Using a graphing calculator, we can easily check the intercepts of the equation

y  = -x^2 +9

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3 years ago
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2 years ago
Find the surface area of the figure below:<br> ???
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Answer:

85 ft^2

Step-by-step explanation:

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3 years ago
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100-4 = 96%
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