Thursday

January 29, 2015

January 29, 2015

Posted by **jerson** on Wednesday, November 12, 2008 at 11:12pm.

b) identify and verify the y intercept of G

c) estimate the zeros of G to the nearest tenth

d) estimate the coordinates of the relative extrema of G to the nearest hundredth

e)in what intervals is G positive? Negative?

f) in what intervals is G increasing? Decreasing?

- trig -
**drwls**, Wednesday, November 12, 2008 at 11:27pmThis is not trigonmetry. You may have to do some plotting of G(x). We cannot do the graphing for you.

The relative extreme values can be obtained by setting the derivative equal to zero, giving

3 x^2 = 8

and solving for x

Please show your work if you need further assistance.

- trig -
**jerson**, Wednesday, November 12, 2008 at 11:36pmthis is trigonometry.. its the class i'm taking and my book is called, functions, statistics, and trigonometry. scott, foresman.

- trig -
- trig -
**Damon**, Wednesday, November 12, 2008 at 11:39pmwhen x = 0, G = 1

sketch a graph of this thing right off. Let y = G(x)

when x is big negative, y is big negative

when x is big positive, y is big positive

we know when x = 0, y = 1

since it is cubic, it may cross the x axis three times

when x = -1, y = 8

when x = +1, y = -6

That gives you a pretty good idea what it looks like

there is a zero left of -1, a zero between 0 and +1, and a zero right of +1

I will leave finding those zeros for you, guess and then guess again

Now You know there is an max around -1 and a min around +1

I would take the derivative to look for where, but you can guess and correct the guess

taking derivative and setting to zero

0 = 3 x^2 -8

x^2 = 8/3

x = +/- 1.63

so we have a max at x = -1.63 , you find y

we have a min at x=+1.63, you find y

Now you can easily make your graph more accurate to answer e and f

- trig -
**drwls**, Wednesday, November 12, 2008 at 11:50pmTrigonometry concerns triangles. That subject may be part of your book, but is not the subject of your question. Your question is about functions.

**Answer this Question**

**Related Questions**

Math - Describe the end behavior and estimate the x-and y-intercepts for each ...

Math - Describe the end behavior and estimate the x-and y-intercepts for each ...

Math - Find the vertex of the parabola y = f(x)= x^2 + 8 x - 11 x coordinate = y...

algebra - Estimate the real zeros of the function to the nearest tenth f(x) = 2x...

Math - 1.)which two sq roots are used to estimate 5? a.)1 & 2 b.)2 & 4 ****** c...

math - The circumference of a sphere was measured to be 76 cm with a possible ...

math - Please help I'm so confused!!!! 1. Which two square roots are used to ...

calculus - The circumference of a sphere was measured to be 76 cm with a ...

math - 18 Estimate 8128 /18 by first rounding each number so that it has only ...

math - Round 0.681 to the nearest tenth. question 2: Estimate 17.64+9.213 by ...