The slope of the line below is -3. Use the coordinates of the labeled point to find a point-slope equation of the line. (5,-7) MU A. y + 7 = 3(x - 5) B. y - 7 = -3(x+ 5)
C. y - 7 = 3(x+5)
D. y + 7 = -3(x - 5)​

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

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