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Mathematics 15 Online
kaylak:

help

kaylak:

1 attachment
Shadow:

1. f(x) = x^2 -6x + 9 Factor (x - 3)(x - 3) Zeros, x - 3 = 0 x = 3 So, the graph of the function touches the x-axis at x = 3

kaylak:

2

kaylak:

number 2

kaylak:

you there?

Shadow:

For Number 2, it is the second option. This is because in f(x) = 2x^5 - x^4 -2x^3 + 4x^2 + x - 2 there are three changes in signs (positive and negative) with this being the positive case (as per f(x) ). Therefore we know that there are three or one positive zeroes.

kaylak:

number 3

kaylak:

you there

kaylak:

is it a

Shadow:

Second, doing some testing.

Shadow:

When you input x for 0 and 2 you get 5 and -17. In between those two is zero, therefore those points are your answer.

kaylak:

so c

kaylak:

wanna help more

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