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What is the slope of the line through (1, -1) and (5, -7)? Your Answer Must Be Exact, Be sure to make the answer a fraction.

What is the slope of the line through (1, -1) and (5, -7)? Your Answer Must Be Exact, Be sure to make the answer a fraction.
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What is the slope of the line through (1, -1) and (5, -7)? Your Answer Must Be Exact, Be sure to make the answer a fraction.

User Dean Thomas
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\bf \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) &({{ 1}}\quad ,&{{ -1}})\quad % (c,d) &({{ 5}}\quad ,&{{ -7}}) \end{array} \\\\\\ % slope = m slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{-7-(-1)}{5-1}\implies \cfrac{-7+1}{5-1} \\\\\\ \cfrac{-6}{4}\implies -\cfrac{3}{2}
User Mmorris
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