Find the distance between points (2,-9) and (-1,4) using the distance formula

Ily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. her work is shown below. 4(x – 1) – x = 3(x + 5) – 11 4x – 4 – x = 3x + 15 – 11 3x – 4 = 3x + 4 how can her partial solution be interpreted?

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Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?