Identify Equation Form: Identify the form of the equation.The equation y−8=−21(x−2) is in the point-slope form, which is y−y1=m(x−x1), where m is the slope of the line.
Compare with Point-Slope Form: Compare the given equation with the point-slope form. By comparing y−8=−21(x−2) with y−y1=m(x−x1), we can see that the slope m is the coefficient of (x−x1), which in this case is −21.
Write Down Slope: Write down the slope.The slope of the line is −21.
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