Asked by patty
If (8, 7) are the coordinates of a point on a line that has slope –3, what is the y-coordinate of the point on the line at which x=1
Answers
Answered by
Reiny
first find the equation:
with slope of -3 and the point(8,7) on it, using
y = mx + b
7 = -3(8) + b
31
y = -3x + 31
when x = 1
y = -3(1) + 31 = 28
with slope of -3 and the point(8,7) on it, using
y = mx + b
7 = -3(8) + b
31
y = -3x + 31
when x = 1
y = -3(1) + 31 = 28
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