The answer is C.
Set each factor of the formula of the function equal to 0 and solve for x in order to find the x-intercepts:
x + 3 = 0 then x = - 3;
x - 3 = 0 then x = 3;
x - 4 =0 then x = 4.
Therefore, the graph of the function has x-intercepts - 3, 3 and 4.
–
James Villanueva
·
2 years ago

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@James Villanueva
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Thank you! I tried A the first time I took the test and got it wrong so I was pretty sure it had to be C but I thought double check! :)
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Christina Morris
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2 years ago

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@Christina Morris
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Note that though the graph is the same, the answer to the second question of "What are the zeros of the function" are different.

Answers in A are \( 3, -3, -4 \), answers in C are \( -3, 3, 4 \).
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Calvin Lin
Staff
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2 years ago

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@Calvin Lin
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Yes, you are right. I didn't see the negative sign of - 4 in the option A), it is pretty small hehehehe. So the only correct option is C).
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James Villanueva
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2 years ago

@James Villanueva
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What if i jumble the terms and write them as y=(x-3)(x+3)(x-4), Then?? There is no difference...between the two functions...so, now?
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Abhineet Nayyar
·
2 years ago

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TopNewestThe answer is C. Set each factor of the formula of the function equal to 0 and solve for x in order to find the x-intercepts: x + 3 = 0 then x = - 3; x - 3 = 0 then x = 3; x - 4 =0 then x = 4. Therefore, the graph of the function has x-intercepts - 3, 3 and 4. – James Villanueva · 2 years ago

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– Christina Morris · 2 years ago

Thank you! I tried A the first time I took the test and got it wrong so I was pretty sure it had to be C but I thought double check! :)Log in to reply

Answers in A are \( 3, -3, -4 \), answers in C are \( -3, 3, 4 \). – Calvin Lin Staff · 2 years ago

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– James Villanueva · 2 years ago

Yes, you are right. I didn't see the negative sign of - 4 in the option A), it is pretty small hehehehe. So the only correct option is C).Log in to reply

– Abhineet Nayyar · 2 years ago

A has the same solutions...Why not A??Log in to reply

– James Villanueva · 2 years ago

Because the zeros in A) are not in ascending order. That's why I would select C) as my answer.Log in to reply

– Abhineet Nayyar · 2 years ago

But that's not a necessary reason?? Is it?Log in to reply

– James Villanueva · 2 years ago

No, it is not but I think it makes C) more appropiateLog in to reply

– Abhineet Nayyar · 2 years ago

What if i jumble the terms and write them as y=(x-3)(x+3)(x-4), Then?? There is no difference...between the two functions...so, now?Log in to reply

– James Villanueva · 2 years ago

The zeros would still be the same and if you order them, the list will be - 3, 3 and 4.Log in to reply

Only (c) can be the correct answer... As zeroes of the function suggest – Rahul Singh · 4 months, 1 week ago

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The answer could be both A and C...i am not able to see a difference between them!! – Abhineet Nayyar · 2 years ago

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