Math Problem Statement

Copy and complete the table of values for y = x^2 - 3x - 2. What numbers replace A, B, and C?

Solution

We are tasked to complete the table for y=x23x2y = x^2 - 3x - 2 and find values for AA, BB, and CC corresponding to specific xx-values.

The table:

xx-10123
yyAB-4-4C

We calculate yy for the missing values using the equation:

y=x23x2y = x^2 - 3x - 2


Step-by-step Calculations:

  1. For x=1x = -1 (to find AA): y=(1)23(1)2y = (-1)^2 - 3(-1) - 2 y=1+32=2y = 1 + 3 - 2 = 2 So, A=2A = 2.

  2. For x=0x = 0 (to find BB): y=023(0)2y = 0^2 - 3(0) - 2 y=002=2y = 0 - 0 - 2 = -2 So, B=2B = -2.

  3. For x=3x = 3 (to find CC): y=323(3)2y = 3^2 - 3(3) - 2 y=992=2y = 9 - 9 - 2 = -2 So, C=2C = -2.


Final Table:

xx-10123
yy2-2-4-4-2

Final Answers:

  • A=2A = 2
  • B=2B = -2
  • C=2C = -2

Let me know if you need further explanations or additional examples! 😊


Related Questions:

  1. What is the general shape of the graph of y=x23x2y = x^2 - 3x - 2?
  2. How do you find the vertex of y=x23x2y = x^2 - 3x - 2?
  3. What are the roots (or xx-intercepts) of y=x23x2y = x^2 - 3x - 2?
  4. Can you factorize x23x2x^2 - 3x - 2?
  5. How do you plot this quadratic equation on a graph?

Tip:

The coefficient of x2x^2 in a quadratic equation determines whether the parabola opens up (a>0a > 0) or down (a<0a < 0).

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations
Table of Values

Formulas

y = x^2 - 3x - 2

Theorems

Substitution into Quadratic Equations

Suitable Grade Level

Grades 7-9