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SIZIF [17.4K]
3 years ago
9

Which statement about y = x2 − x3 is true?

Mathematics
2 answers:
ad-work [718]3 years ago
8 0

ANSWER

c.It is neither an odd nor an even function.

EXPLANATION

The given function is

y = f(x) =  {x}^{2}  -  {x}^{3}

If this function is odd, then f(-a)=-f(a).

f( - a) =  {( - a)}^{2}  -  {( - a)}^{3}

f( - a) =  {(  a)}^{2}   +  {( a)}^{3}

Now ,

f( a) =  {(  a)}^{2}    -  {( a)}^{3}

- f( a) =  -  {(  a)}^{2}     +   {( a)}^{3}

Since

f( -  a) \ne - f(a)

The function is not odd.

Also if the function is even, then

f( a) =  f( - a)

Since

f( a) \ne  f( - a)

the function is not even.

Hence the function is neither even nor odd.

Digiron [165]3 years ago
4 0

Answer:

Option c. It is neither an odd nor an even function.

Step-by-step explanation:

The equation y = x^2 - x^3 is a function, because there is a single value of y for each value of the domain x.

To test if it is an even function we must do  y = f(-x). If f(-x) = f(x) then it is an even function.

If f(-x) = -f(x) then it is an odd function

y = f(-x) = (-x) ^ 2 - (- x) ^ 3

Simplifying we have:

y = x ^ 2 + x ^ 3

f(-x) is not equal to f(x) so the function is not even.

f(-x) is not equal to -f(x) so the function is not odd.

THE correct answer is the option c

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