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liraira [26]
3 years ago
7

Select the correct answer.

Mathematics
1 answer:
diamong [38]3 years ago
7 0

Answer:

A

Step-by-step explanation:

Given the 2 equations

y = x² + 2x + 7 → (1)

y = x + 7 → (2)

Substitute y = x² + 2x + 7 into (2)

x² + 2x + 7 = x + 7 ( subtract x + 7 from both sides )

x² + x = 0 ← factor out x from each term on the left side

x(x + 1) = 0

Equate each factor to zero and solve for x

x = 0

x + 1 = 0 ⇒ x = - 1

Substitute these values into (2) for corresponding values of y

x = 0 → y = 0 + 7 = 7 ⇒ (0, 7 )

x = - 1 → y = - 1 + 7 = 6 ⇒ (- 1, 6 )

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What is the place value of 1 in 5,678.321
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sketch the graph of each function. Then State the domain, range and increasing, decreasing intervals. Part 3. ​
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Answer:

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Step-by-step explanation:

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______________________________

For the second graph there should be a vertical shift down three units, a horizontal shift 1 unit to the left, and a vertical stretch by a factor of - 1. (Check second graph)

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Therefore,

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Answer:

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Step-by-step explanation:

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