write an equation: slope -1; passes through (8, 5)?

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write an equation: slope -1; passes through (8, 5)?

2007-03-14 13:34:49 · 3 answers · asked by kikayrakista 1 in Education & Reference ➔ Homework Help

3 answers

y=-x+13

2007-03-14 13:53:18 · answer #1 · answered by baby face. 3 · 0⤊ 0⤋

You need to plug in the points given and the slope to find the y-intercept.

5 = -1(8) + b
5 = -8 + b
13 = b

Then, plug in the y-intercept and slope.

y = -1x + 13

2007-03-14 13:43:22 · answer #2 · answered by sweety_julie123 2 · 0⤊ 0⤋

y = mx + b

5 = (-1)8 + b
5 = -8 + b
b = 13

y = -x + 13

2007-03-14 13:38:59 · answer #3 · answered by 7 · 0⤊ 0⤋