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A line that includes the point (-9, -2) has a slope of -9. What is its equation in point-slope

User Pankwood
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1 Answer

6 votes

Answer:

9x- y = 79

Explanation:

Use the formula y - y1 = m (x - x1)

point: (-9,-2) x1= -9 y1= -2

slope: -9

plug everything in y + 2= -9 (x + 9)

simplify y + 2= -9x - 81

move the 2 to the other side y = -9x - 79

move the -9x to the other side -9x + y = -79

multiply the whole thing by -1 to make the x positive

9x - y = 79

User DenStudent
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