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Julli [10]
2 years ago
6

Use the following equation y = 3x + 15 to solve for y when x = 3.

Mathematics
2 answers:
Ede4ka [16]2 years ago
5 0
Y = 3(3) +15

y = 9 + 15

y= 24
Digiron [165]2 years ago
5 0
3 times 3 equals 9 then you add it with 15, your answer is 24, or b. Have a good rest of your day !
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Write a function to represent the set of ordered pairs.
77julia77 [94]

Answer:

Option C   f (x) = x^ 2 - 2

Step-by-step explanation:

Note that the relation describing the set of ordered pairs does not change at a costing rate

y_2 -y_1 = 7-2 = 5\\\\y_3 -y_2 = 14- 7 = 7\\\\y_4 - y_3 = 23- 14 = 9

Therefore the relationship is not linear.

However, the exchange rate y_n- y_{n-1} increases by a factor of 2 units when n increases 1 unit. This allows us to conclude that the relationship is quadratic

Note that the following ordered pairs belong to the function

y = x ^ 2

A = {(2, 4), (3, 9), (4, 16), (5, 25)}

The set of ordered pairs that we have is:

B = {(2, 2), (3, 7), (4, 16), (5, 23)}

Note that there is a similarity between both sets of ordered pairs.

In set B the values of y are always 2 units less than the values in y of the set A.

Then we deduce that since the function that models the set A is y = x ^ 2 then the function that contains the ordered pairs of the B set is:

y = x ^ 2 -2

The correct option is option C) f (x) = x^ 2 - 2

8 0
3 years ago
Which of the following statements is true?
vlada-n [284]
The number -4 is a whole number
7 0
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Proportions happen because two events or scenarios are ___
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Please help me! I'll give brainiest again!
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Answer:

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4 0
3 years ago
Read 2 more answers
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