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svetlana [45]
3 years ago
11

. Which equation represents y = −x2 + 4x − 1 in vertex form?

Mathematics
1 answer:
Stels [109]3 years ago
6 0

Answer:

Rewrite in vertex form and use this form to find the vertex  

(

h

,

k

)

.

(

2

,

3

)

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

The last answer; 12.

Step-by-step explanation:

In order to solve this, use substitution. Since it gives you an equation for y, substitute that equation in the other formula as y. This will give you:

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The absolute value of -8 is 8 and the absolute value of 5 is 5. Absolute value is basically the number's distance from 0 on a number line, basically how many numbers it is away from 0. For that reason, it's always positive, regardless of whether or not the number is positive or negative. Hope this helped!

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What is the measure of z?
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137

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