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Elina [12.6K]
1 year ago
10

how do i find the type of relationship of a table? whether it is linear or quadradic and how do i find the formula for either re

lationship?

Mathematics
1 answer:
Lady bird [3.3K]1 year ago
7 0

By finding the differences between dependent values, you can determine the degree of the model for data given as ordered pairs. If the first difference is the same value, the model will be linear. If the second difference is the same value, the model will be quadratic.

Also you can solve it by plotting the dots. If the graph seems a straight line it is linear and quadratic if it is a parabola.

For the data set given it is a linear relation

Line of best fit: y=3.18x+54.92

For x=7;

y=3.18*7+54.92

y=77.18

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Answer:

\huge\boxed{x=\sqrt{70}}

Step-by-step explanation:

ΔABC and ΔADB are similar (AAA).

Therefore the corresponging sides are in proportion:

\dfrac{AB}{AD}=\dfrac{AC}{AB}

Substitute:

AB=x\\AC=7+3=10\\AD=7

\dfrac{x}{7}=\dfrac{10}{x}       <em>cross multiply</em>

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Since there is an odd number every two numbers, three consecutive odd numbers will be

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And 27 less than 3 times the largest is

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These two must be the same, so we have

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To confirm this hypothesis, we can observe that, on the left hand side, we have the sum of two odd numbers, which is even

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