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iris [78.8K]
3 years ago
12

F(x) = x3 - 7 find(3)

Mathematics
1 answer:
ryzh [129]3 years ago
4 0

____________________________________________________

Plug in 3 to x:

f(x) = 3³ - 7

Solve:

f(x) = 3³ - 7

f(x) = 3 · 3 · 3 - 7

f(x) = 9 · 3 - 7

f(x) = 27 - 7

f(x) = 20

____________________________________________________

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Right format of question:

Plot two points that are 7 units from Point D and also share the same x-coordinate as Point D.

Answer:

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Step-by-step explanation:

Given

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Required

Determine a point 7 points from D and in the same x coordinate

Represent this point with D'.

From the requirement of the question, D' has two possible values and these values are:

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Substitute values for x and y in D' = D(x,y-7) and D' = D(x,y+7)

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D' = D(x,y-7)

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D' = (-4,-6)

D' = D(x,y+7)

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