Choose an equation in slope-intercept form for the line that passes through (-8,1) and is perpendicular to the y=2x-17.
Choose one answer.
a. y= -2x+1
b. y= -(1/2)x - 5
c. y= -(1/2)x - 3
d. y= -2x - 4
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Slope of Perpendicular lines = opposite reciprocal
Slope of original line = a/b
Slope of perpendicular line = -b/a
So what would the slope be in the new line?
hmmm to be honest i dnt even know what that means that u put up there
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Okay , you want a line perpendicular to y=2x-17.
The slope of y=2x-17 is 2 or 2/1. Remember the Slope-Intercept form; y = mx + b where m = slope.
What is the opposite reciprocal of 2/1?
ex: Opposite reciprocal of a/b is -b/a
2/1 would change into -(1/2). So that leaves you with options b and c.
oh lol u said tht
it was c so thanks
hay one more question if the 0 is on the bottom like 7/0 is it undefined or 0?
It is undefined.
Remember rise/run. In this case the line doesn't "run"... It only goes straight up and down, "rises".
Vertical line... Slope = undefined
Horizontal line... Slope = 0