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Travka [436]
2 years ago
12

Which function has the greatest rate of change?

Mathematics
2 answers:
murzikaleks [220]2 years ago
4 0
For an equation expressed as Ax + By + C, the rate of change is equal to -A/B. For the first equation, it is 6/7. For the second equation, the slope is 2. Then for the third equation, m = (19 - 7) / (4 -2) = 6. Thus, the greatest slope is in third choice. 
Ilia_Sergeevich [38]2 years ago
3 0
The rate of change is the slope...and in y = mx + b form, the slope is in the m position. So we need to put the equations in y = mx + b form.

A. 6x - 7y = 21
-7y = -6x + 21
y = 6/7x - 2....so the slope here is 6/7 or 0.857

B. y = 2x - 2....this is already in the form we need...the slope is 2

C. (2,7)(3,13)
slope = (13-7) /(3-2) = 6/1 or just 6

the slope with the greatest rate of change is gonna be the one with the highest slope......and that would be C.


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9514 1404 393

Answer:

  B) 171 units^2

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<em>Additional comment</em>

You can select the correct answer choice simply on the basis of "reasonableness." If this were a 9×15 rectangle, its area would be 9×15 = 135 square units, more than 85.5. You know its area is less than a 9×23 rectangle, so is less than 9×23 = 207 square units. Only one answer choice is a value between 135 and 207.

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Multiplication by 9 is not so hard. It is multiplication by 10-1:

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5) A roll of wire holds 3.2 meters of wire. One meter is equal to approximately 3.28 feet. About
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1 meter = 3.28 ft. 3

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The answer is 8.831760866 that is the whole answer.
rounded answer would be 8.83
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