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Ber [7]
3 years ago
13

A function is shown f(x)=x^2+2x-1 which graph represents the function

Mathematics
1 answer:
Serhud [2]3 years ago
8 0

Answer:

Graph (2), top right.

Step-by-step explanation:

Given function is f(x) = x² + 2x - 1

f(x) = x² + 2x + 1 - 2

f(x) = (x + 1)² - 2

From this standard equation of a parabola,

Vertex → (-1, -2)

Axis of symmetry → x = (-1)

y-intercept → y = (-1)

Since coefficient of maximum degree term (x²) is positive so, parabola is opening upwards.

From the given choices, second option (top row right) is the answer.

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I dont know if this is supposed to be solved a certain way for a class, but as a bargain shopper, this is what I would do to figure out the best value.

Step-by-step explanation:

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s344n2d4d5 [400]

The polynomial x3+8 is equal to (x+2)(x2-2x+4)


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