MATHEMATICS MIDDLE SCHOOL

Which represents a quadratic function? f(x) = 2x3 + 2x2 – 4 f(x) = –7x2 – x + 2 f(x) = –3x + 2 f(x) = 0x2 + 3x – 3

Answers

Answer 1

Answer:

Answer:

Second option: $f(x) =-7x^2 -x + 2$

Step-by-step explanation:

A quadratic function has the form:

$f(x)=ax^2+bx+c$

(Where $a\neq0$ )

You can observe that the highest exponent of a quadratic function is 2.

Then, let's check which of the options shows a quadratic function:

1) $f(x) = 2x^3 + 2x^2 - 4$

Its highest exponent is 3, then this is not a quadratic function.

2) $f(x) =-7x^2 -x + 2$

Its highest exponent is 2 and $a\neq0$ , then this is a quadratic function.

3) $f(x) = -3x + 2$

Its highest exponent is 1, then this is not a quadratic function.

4) $f(x) =0x^2+3x-3$

You can observe that $a=0$ , then this is not a quadratic function.

Answer 2

Answer:

Answer:

B. f(x) = –7x2 – x + 2

Step-by-step explanation:

the answer above me is right so I'm just shortening it so the answer is easy to find, have a great day !

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Answer:

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Step-by-step explanation:

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Answers

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Answers

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I need help plz :) What type of angle is shown?

Straight

Acute

Obtuse

Right

Answers

Answer: obtuse

Step-by-step explanation:

I would say an obtuse angle.

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Answers

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Answer:

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Step-by-step explanation:

Can someone help me please

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Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

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