Find the slope of the line through the given points (4,-2),(-1,8)

Question

Find the slope of the line through the given points (4,-2),(-1,8)

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MichaelMet 4 years 2021-08-30T08:05:53+00:00 1 Answers 9 views 0

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  1. Neala
    0
    2021-08-30T08:07:08+00:00
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    Answer:

    \displaystyle m=-2

    General Formulas and Concepts:

    Pre-Algebra

    Order of Operations: BPEMDAS

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

    Algebra I

    • Coordinates (x, y)
    • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

    Step-by-step explanation:

    Step 1: Define

    Point (4, -2)

    Point (-1, 8)

    Step 2: Find slope m

    Simply plug in the 2 coordinates into the slope formula to find slope m

    1. Substitute in points [Slope Formula]:                                                             \displaystyle m=\frac{8+2}{-1-4}
    2. [Fraction] Add/Subtract:                                                                                  \displaystyle m=\frac{10}{-5}
    3. [Fraction] Divide:                                                                                                 \displaystyle m=-2

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )