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lukranit [14]
3 years ago
15

Helpppp quickk plzzzzzzzzzzz

Mathematics
1 answer:
Alexandra [31]3 years ago
3 0

Answer:

\displaystyle -1

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Interval Notation
  • Function Notation
  • Average Rate of Change: \displaystyle \frac{f(b) - f(a)}{b - a}

Step-by-step explanation:

<u>Step 1: Define</u>

h(x) = x² + 3x - 6

[-7, 3] → a = -7, b = 3

<u>Step 2: Find Average</u>

  1. Substitute in variables [Average Rate of Change]:                                      \displaystyle \frac{f(3) - f(-7)}{3 - -7}
  2. [Average Rate of Change] Substitute in function:                                       \displaystyle \frac{3^2 + 3(3) - 6 - [(-7)^2 + 3(-7) - 6]}{3 - -7}
  3. [Average Rate of Change] Simplify:                                                               \displaystyle \frac{3^2 + 3(3) - 6 - [(-7)^2 + 3(-7) - 6]}{3 + 7}
  1. [Average Rate of Change] Evaluate exponents:                                           \displaystyle \frac{9 + 3(3) - 6 - [49 + 3(-7) - 6]}{3 + 7}
  2. [Average Rate of Change] Multiply:                                                              \displaystyle \frac{9 + 9 - 6 - [49 - 21 - 6]}{3 + 7}
  3. [Average Rate of Change] [Brackets] Subtract:                                            \displaystyle \frac{9 + 9 - 6 - [28 - 6]}{3 + 7}
  4. [Average Rate of Change] [Brackets] Subtract:                                            \displaystyle \frac{9 + 9 - 6 - 22}{3 + 7}
  5. [Average Rate of Change] Add:                                                                     \displaystyle \frac{18 - 6 - 22}{3 + 7}
  6. [Average Rate of Change] Subtract:                                                                \displaystyle \frac{12 - 22}{3 + 7}
  7. [Average Rate of Change] Subtract:                                                               \displaystyle \frac{-10}{3 + 7}
  8. [Average Rate of Change] Add:                                                                     \displaystyle \frac{-10}{10}
  9. [Average Rate of Change] Divide:                                                                 \displaystyle -1
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