Question

3. Observe the following graph and answer
In the above graph, how many zeroes are there for the polynomial?
a)
b) 1 C) 2
d)3
4. The three zeroes in the above shown graph are
a) 2,3, -1 b) -2,3,1 C) -3,-1,2 d) -2,-3,-1
5. What will be the expression of the polynomial?
a) x + 2x2 - 5x-6 b)x? + 2x2 - 5x + 6
c)x? + 2x2 + 5x - 6 d)x? + 2x2 + 5x + 6​

Answer 1

Answer:

3. d) 3

4. c) -3,-1,2

5. a) x³+2x²-5x-6

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Answer 2

Answer:

3.   d) 3

4.   c)  -3,-1,2

5.   a)$x^3 + 2x^2 - 5x-6$

Step-by-step explanation:

3.

In the graph we see that the graph cuts the x axis in the coordinates:

(-3,0); (-1,0); (2,0)

So, there are 3 zeroes

4.In the graph we see that the graph cuts the x axis in the coordinates:

(-3,0); (-1,0); (2,0)

So, three zeroes in the above shown graph are: -3,-1,2

5. If we put x = 2 in any polynomial then the result will be 0.

Now,

$x^3 + 2x^2 - 5x-6\\= 2^3 + 2(2^2) - (5*2) - 6\\= 8 - 8 - 10 -6\\= 0$

So, option a is the correct answer.