3 years ago

Questions 4&5 plssss (picture attached)

Mathematics

1 answer:

lozanna [386]3 years ago

3 0

Answer:

4) fortnite

5) 17 orange marbles

:))

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Complete the statements below that show y = x2 + 2x - 1 being converted to vertex form. Form a perfect-square trinomial. y = x2

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Solution: The needed answer for first blank is 1 and the needed a for second blank is 1.

Explanation:

The given equation is $y=x^2+2x-1$ .

The form of perfect square is $(x+y)^2=x^2+2xy+y^2$ .

The given equation can be written as $y=(x^2+2x)-1$ .

To make the perfect square we can add or subtract $(\frac{b}{2a})^2$ in the given equation. Where, a is coefficient of $x^2$ and b is coefficient of x. In the parenthesis the coefficient of $x^2$ is 1 and coefficient of x is 2.

$(\frac{b}{2a})^2=(\frac{2}{2(1)})^2=1$

So, the given equation is written as $y=(x^2+2x+1)-1-1$

$y=(x+1)^2-2$

Therefore, the needed answer for first blank is 1 and the needed a for second blank is 1.

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Answer:

i think it will be option 3

Step-by-step explanation:

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Answer i believe the rule is y= x/2 so n=6

Step-by-step explanation:

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