Write an equation for each translation of y=|x|.
6.5 units up
y + 6.5 = | x |
y = | 6.5x |
y = | x | + 6.5
y = | x | – 6.5
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OpenStudy (anonymous):
jim_thompson5910
OpenStudy (anonymous):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
we just tack on a `+6.5` to the end to shift the graph up 6.5 units
jimthompson5910 (jim_thompson5910):
so it would be `y = | x | + 6.5`
OpenStudy (anonymous):
I have another one
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jimthompson5910 (jim_thompson5910):
hint: point slope form \[\LARGE y-y_{1} = m(x-x_{1})\]
OpenStudy (anonymous):
C
jimthompson5910 (jim_thompson5910):
no
jimthompson5910 (jim_thompson5910):
look at point slope form carefully
OpenStudy (anonymous):
hmmm
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OpenStudy (anonymous):
B
jimthompson5910 (jim_thompson5910):
sounds like you're randomly guessing at this point
OpenStudy (anonymous):
let me think about it.
OpenStudy (anonymous):
y=-6 so D?
jimthompson5910 (jim_thompson5910):
yeah it should be y-(-6) which turns into y+6
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OpenStudy (anonymous):
Write an equation in point-slope form for the line through the given point with the given slope.
(–3, –7); m = -6/5
y – 7 = -6/5(x – 3)
y + 7 = -6/5(x + 3)
y + 3 = -6/5(x + 7)
y – 7 = -6/5(x + 3)
jimthompson5910 (jim_thompson5910):
what are your thoughts on this one?
OpenStudy (anonymous):
If it like the other ones it would be C
jimthompson5910 (jim_thompson5910):
you mixed up x and y though
OpenStudy (anonymous):
so I flip the 7 and 3?
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