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Determine whether the function is linear or quadratic. Identify the quadratic, linear, and constant terms.

f(x)= (3x-4)(-6x-5)

quadratic function
quadratic term: −18x2
linear term: 39x
constant term: –20

quadratic function
quadratic term: −12x2
linear term: −42x
constant term: –20

linear function
linear term: 39x
constant term: –20

linear function
linear term: −18x2
constant term: –20

Respuesta :

The given function is quadratic. The quadratic term is -18x², the linear term is 39x, and the constant term is -20. So, first option is correct.

What is a quadratic function?

A function in which the highest degree of the variable is 2, then that function is said to be a quadratic function.

The general form of a quadratic function is ax² + bx + c. Where the terms are:

ax² - quadratic term;

bx - linear term;

c - constant term;

What is a linear function?

A function in which the highest degree of the variable is 1, then that function is said to be a linear function.

The general form of a linear function is ax + c. Where the terms are:

ax - linear term;

c - constant term;

Expanding the given function:

The given function is f(x) = (3x - 4)(-6x + 5)

Expanding the given function,

f(x) = (3x)(-6x) + (3x)(5) + (-4)(-6x) + (-4)(5)

     = -18x² + 15x + 24x - 20

     = -18x² + 39x - 20

Since the highest degree of the variable x in the obtained function is 2, it is a quadratic function.

The terms in the obtained quadratic function are:

quadratic term: -18x²

linear term: 39x

constant term: -20

Therefore, the first option is correct.

Learn more about quadratic function here:

https://brainly.com/question/11631534

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Disclaimer: The question has a mistake in the function. The corrected question is here.

Question: Determine whether the function is linear or quadratic. Identify the quadratic, linear, and constant terms.

f(x)= (3x - 4)(-6x + 5)

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