Tuesday

January 27, 2015

January 27, 2015

Posted by **samantha** on Tuesday, October 26, 2010 at 8:57pm.

- College algebra -
**Bosnian**, Wednesday, October 27, 2010 at 4:54amy=ax^3+bx^2+cx+d=a*(x-x1)*(x-x2)*(x-x3)

where is x1,x2,x3 coordinates of

x-intercepts

In this case x1=4, x2=-3 and x4=2

y=a*(x-4)*(x+3)*(x-2)

=a*(x^2-4x+3x-12)(x-2)

=a*(x^2-x-12)*(x-2)

For x=0

y=a*(-12)*(-2)=24*a= 12 Divide dwith 24

a=12/24=1/2

y=(1/2)*(x-4)(x+3)(x-2)

=(1/2)*(x^2-x-12)(x-2)

=(1/2)*(x^3-x^2-12x-2x^2+2x+24)

=(1/2)*(x^3-3x^2-10x+24)

OR

y=(1/2)*x^3-(3/2)*x^2-5*x+12

**Answer this Question**

**Related Questions**

college algebra - For the given equation list the intercepts. Y= -2X/(X^2+1) I ...

MAth!PLease Help! - 5. Find the x and y intercepts of each linear equation. Be ...

Mathematics - Determine the equation of a quadratic function that satisfies each...

Algebra - Find the x- and y-intercepts of the graph of the equation. (Separate ...

College Algebra - Suppose that the Quadratic equation had two X-intercepts. How ...

Algebra 2 - 3Y + 6x = 18 4y – 12x = -16 a.) Get each equation in slope-intercept...

Algebra - graph the equation x-3=y (where do I plot the points?) find the ...

algebra - graph each of the following equations below using their intercepts?. ...

algebra - Graph each of the following equations below using their intercepts?. 0...

algebra - graph each of the following equations below using their intercepts?. ...