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Mathematics 20 Online
OpenStudy (anonymous):

.

OpenStudy (anonymous):

@LynFran

OpenStudy (anonymous):

ask her she awesome

OpenStudy (anonymous):

you got any idea?

Vocaloid (vocaloid):

[f(1)-f(0)]/(1-0)

OpenStudy (anonymous):

what do i do next?

Vocaloid (vocaloid):

[f(1)-f(0)]/(1-0) f(1) = ?

OpenStudy (anonymous):

im not sure i think its 0?

Vocaloid (vocaloid):

when x = 1, what is f(x)?

OpenStudy (anonymous):

okay doing it now hold on

OpenStudy (anonymous):

first term is -4, correct?

OpenStudy (anonymous):

ten +12, right?

OpenStudy (anonymous):

then^

Vocaloid (vocaloid):

not 12 what is 4x^3 when x = 1?

OpenStudy (anonymous):

oh +4

Vocaloid (vocaloid):

right, keep going

OpenStudy (anonymous):

-4

Vocaloid (vocaloid):

nope, not -4 what is -2x^2 when x = 1?

OpenStudy (anonymous):

-2

OpenStudy (anonymous):

+2

Vocaloid (vocaloid):

it's -2

Vocaloid (vocaloid):

now keep going

OpenStudy (anonymous):

So it equals 0?

Vocaloid (vocaloid):

you're not finished with the problem left you still have + x + 1 left

OpenStudy (anonymous):

so it equals 2?

Vocaloid (vocaloid):

-1+4-2+1+1 = ?

OpenStudy (anonymous):

thats not an answer choice?

Vocaloid (vocaloid):

right, f(1) = 3, but we're not done with the problem yet now we need to find f(0)

OpenStudy (anonymous):

so what do we do now?

Vocaloid (vocaloid):

find f(0)

OpenStudy (anonymous):

how?

Vocaloid (vocaloid):

what is the value of f(x) when x = 0?

OpenStudy (anonymous):

1?

Vocaloid (vocaloid):

yes so, f(1) = 3 and f(0) = 1 now let's go back to the formula I posted at the beginning [f(1)-f(0)]/(1-0) = ?

OpenStudy (anonymous):

2?

Vocaloid (vocaloid):

yup! we're done

OpenStudy (anonymous):

3-1 =2/1=2?

OpenStudy (anonymous):

okay thanks SO much!

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