Answer:
Step-by-step explanation:
m =
y - = m( x -
)
y = mx + b
~~~~~~~~~~~
(4, 5)
( - 6, 15)
m = (15 - 5) / ( - 6 - 4 ) = - 1
y - 5 = ( - 1)( x - 4 )
y =<em> (- 1) </em>x + <em>9</em>
Jim is 5 years older than Cindy. 4 years ago, the sum of their ages was 21. Find each of their ages now.
1 answer:
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