3 years ago

What is a Reciprical??

Mathematics

2 answers:

Zinaida [17]3 years ago

5 0

if your number was 11/22 the reciprocal would be 22/11. You can think of it as the refliprical.

34kurt3 years ago

3 0

It's the inverse of a quantity or function. (Ex. 1/7 would turn into 7/1 or just 7)

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Question 1 of 10

Archy [21]

Answer:

A. y = 7(x + 1)²-3

Step-by-step explanation:

Parabola:

$y = 7x^{2} + 14x + 4$

$y = 7(x^{2} + 2x) + 4$

Putting into vertex form, remember that:

$(x + a)^{2} = x^{2} + 2ax + a^{2}$

In this question:

$x^{2} + 2x$ , to put into this format:

$x^{2} + 2x + 1 = (x + 1)^{2}$

We add one inside the parenthesis to do this. The parenthesis is multiplied by 7, so for the equivalent, we also have to subtract 7. Then

Vertex form:

$y = 7(x^{2} + 2x + 1) + 4 - 7$

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So the correct answer is:

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