What is the slope of the line for the equation y = -8?
-8
0
undefined
none of the above
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OpenStudy (anonymous):
|dw:1348687671499:dw|
OpenStudy (anonymous):
-8?
OpenStudy (anonymous):
no, y = -8 is the line... it's at the -8 spot on the y-axis everywhere... it's that lower line.
OpenStudy (anonymous):
what is the slope of that line?
OpenStudy (anonymous):
idk 0
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OpenStudy (anonymous):
or undefined
OpenStudy (anonymous):
can't tell if you are guessing...
Slope is "how much up" divided by "how much over"
(change in y) / (change in x)
in this problem, the line is y = -8... it is flat everywhere, and it doesn't go up at all... it has a zero slope, because the "change in y" is zero... it's always at y = - 8
OpenStudy (anonymous):
Undefined would be the slope of a vertical line, like x = 3
(Change in y) / (change in x) <<--- change in x is 0, and you can't divide by zero, so it's undefined
OpenStudy (anonymous):
i said it was undefined
OpenStudy (anonymous):
Vertical: slope undefined
horizontal: slope = 0
diagonal: slope = (change in y / change in x)
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