Math Problem Statement

Determine the value of y, if x is 3. y = x^2 + 5

Solution

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Let's proceed with determining the value of yy when x=3x = 3 for the equation y=x2+5y = x^2 + 5:

Step-by-step:

  1. Start with the equation:
    y=x2+5y = x^2 + 5

  2. Substitute x=3x = 3:
    y=32+5y = 3^2 + 5

  3. Calculate 323^2 which is 99:
    y=9+5y = 9 + 5

  4. Add 9+59 + 5:
    y=14y = 14

Therefore, the value of yy when x=3x = 3 is 1414.

Would you like more details or have any questions?

Related questions:

  1. How does substituting values into an equation work?
  2. What is the general method for solving quadratic equations?
  3. How do you graph y=x2+5y = x^2 + 5?
  4. What does y=x2+5y = x^2 + 5 represent geometrically?
  5. How can you find the vertex of the parabola represented by y=x2+5y = x^2 + 5?

Tip:

Always perform operations in the correct order: first exponents, then multiplication/division, and finally addition/subtraction (PEMDAS).

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Expressions
Substitution

Formulas

y = x^2 + 5

Theorems

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Suitable Grade Level

Grades 6-8