Question 160081
standard form where slope = -1;(0,7)
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Plug what was given into the "point-slope" form then convert into the "standard form".
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"standard form":
Ax + By = C
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"point-slope form":
y – y1 = m(x – x1)
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Plug in our given info:
y – 7 = (-1)(x – 0)
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Now, converting to "standard form":
y – 7 = (-1)(x)
y – 7 = -1x
y = -x + 7
x + y = 7  (this is what they're looking for)