Find Equation for a Cubic Function with Zeros -2 and 3 and Y-Intercept 9

  • Thread starter Thread starter jessica.so
  • Start date Start date
Click For Summary
SUMMARY

The discussion focuses on deriving the equation of a cubic function with specified zeros and a y-intercept. The given zeros are -2 (with a multiplicity of 2) and 3, leading to the factors (x + 2)² and (x - 3). Using the y-intercept of 9, the final equation is determined to be y = -3/4(x + 2)²(x - 3), confirming the correct formulation of the cubic function.

PREREQUISITES
  • Understanding of cubic functions and their properties
  • Knowledge of polynomial factoring techniques
  • Familiarity with the concept of y-intercepts in functions
  • Ability to manipulate algebraic expressions
NEXT STEPS
  • Study polynomial functions and their characteristics
  • Learn about the process of finding y-intercepts in various functions
  • Explore the concept of multiplicity in polynomial roots
  • Practice deriving equations from given roots and intercepts
USEFUL FOR

Students studying algebra, particularly those focusing on polynomial functions, as well as educators seeking to enhance their teaching methods in function analysis.

jessica.so
Messages
20
Reaction score
0

Homework Statement


When you are given the type of function, the roots and the zeros, how do you find the equation?
Information given was:
a cubic function with zeros -2 (order 2) and 3 and y-intercept 9

Homework Equations


N/A


The Attempt at a Solution


since zeros are -2 and 3, x+2 and x-3
i called this equation f(x)
since y-intercept if 9, f(0)=9

The correct answer is y= -3/4(x+2)^2(x-3)
 
Physics news on Phys.org
Looks good
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 23 ·
Replies
23
Views
2K
Replies
3
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
4
Views
4K
  • · Replies 4 ·
Replies
4
Views
1K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K