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7 votes
Which value of x would make the rate of change between the two points -5? (12,7) and (x,17)

User JohnHC
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1 Answer

21 votes
21 votes

Explanation:


\sqrt{(12 - x) {}^(2) + {(7 - 17) {}^(2) } } = - 5\\ \\ \sqrt{144 + x {}^(2) - 24x + ( - 10) {}^(2) } = - 5 \\ \\ \sqrt{144 + x {}^(2) - 24x + 100} = - 5 \\ \\ 244 + x {}^(2) - 24x = 25 \\ \\ {?}^(2)


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