Asked by chelsea
A line with a slope of -2 passes through the point (1, 7). What is the closest point on the line above (1, 7) which has whole number coordinates?
Answers
Answered by
Reiny
It is easy to "step off" points above and below by using the rise/run = -2/1 slope definition, that is, add 1 to the y value, add -2 to the x value or
add -1 to y and +2 to the x
other points:
(0,9) (-1,11) (-2,13) , (notice the slope between any pair is -2)
looks like (0,9) is it
add -1 to y and +2 to the x
other points:
(0,9) (-1,11) (-2,13) , (notice the slope between any pair is -2)
looks like (0,9) is it
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