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aniked [119]
3 years ago
11

Is this equation proportional or non-proportional? How do you know? y = 7x - 3

Mathematics
1 answer:
deff fn [24]3 years ago
4 0

Answer:

Step-by-step explanation:

This is not proportional.

There are two ways you can tell

  • The y intercept must be 0. In this equation, the y intercept is -3
  • y/x should be the same for all correct values of y given x.

Examples

x = 3

y = 18

y/x = 6

x = 2

y = 11

y/x = 11/2 = 5.5

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Given that f(x) = x^2 - 4x +1, find the value of m if f(m) = -3
iragen [17]

a. Answer:  m = 2

<u>Step-by-step explanation:</u>

f(x) = x² - 4x + 1

f(m) = m² - 4m + 1 = -3

         m² - 4m + 4 = 0

         (m - 2)(m - 2) = 0

               m = 2

***************************************************

b. Answer:  k = 2 and k = 5

<u>Step-by-step explanation:</u>

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f(k) = k² - 7k + 14 = 4

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3 0
3 years ago
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