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alekssr [168]
3 years ago
8

What are the apparent zeros of the cubic function graphed above? (also if you have the answers to the rest of this test plz send

them thx)

Mathematics
2 answers:
Mazyrski [523]3 years ago
7 0

<em>The point where a function (for our problem its the cubic function shown)</em>

  • cuts/crosses the x-axis

<u>and/or</u>

  • touches the x-axis

<em>is a zero of the function.</em>

From the graph shown, we can clearly see that it cuts the x-axis at -1 and touches the x-axis at 2.

So the zeros are at -1 and 2.


ANSWER: {-1,2}


nikdorinn [45]3 years ago
6 0

Answer:

C. {-1,2}

Step-by-step explanation:

We are given the graph of a cubic function.

Fundamental Theorem of Algebra states that 'An n-degree function will have n number of zeroes'.

Thus, the given cubic function will have 3 zeroes.

Since, we see that,

The graph of the function is crossing the x-axis at the point -1.

So, x= -1 is a zero of the cubic function.

Also, the graph of the function touches the x-axis at the point 2.

<em>So, x= 2 is also a zero of the cubic function with multiplicity 2 (i.e. they are repeating zeroes).</em>

Thus, the three zeroes of the cubic function are -1, 2 and 2.

Hence, according to the options,

The zeroes of the cubic function are {-1,2}.

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