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OpenStudy (lynfran):
given y=mx+b, determine m and b. line t passes through O, and the angle from t to the line 4x-7y-28=0 is 45 degree
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imqwerty (imqwerty):
O=origin?
OpenStudy (lynfran):
yes
OpenStudy (freckles):
I think line t is y=mx+b ?
OpenStudy (freckles):
we already know our line is in the form y=mx since it goes through the origin
OpenStudy (freckles):
I will do a rough drawing of things... |dw:1444844748377:dw|
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OpenStudy (freckles):
I think we need to first identify the slopes of each line.
OpenStudy (freckles):
|dw:1444844857050:dw| slope of line 1 is m slope if line 2 is 4/7
OpenStudy (freckles):
|dw:1444844923537:dw|
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