Which expression can be used to find the slope of a line containing the points open paren negative 3 comma 2 close paren and open paren 7 comma negative 1 close paren ?
Answer
A
the fraction with numerator negative 1 minus 2 and denominator 7 minus negative 3
B
the fraction with numerator 2 minus negative 3 and denominator negative 1 minus 7
C
the fraction with numerator 7 minus negative 3 and denominator negative 1 minus 2
D
the fraction with numerator negative 1 minus 7 and denominator 2 minus negative 3
Explanation
Use the slope formula: change in y divided by change in x. From (−3, 2) to (7, −1), this is (−1 − 2) ÷ (7 − (−3)), which matches the expression in choice A.
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