Equation of a line with slope m and point (x

y-y

_{1},y_{1}) through which it passes is:y-y

_{1}=m(x-x_{1})Since the given line has a slope, m=-9 and passes through (6,7), x

_{1}=6 and y

_{1}=7 the equation is:

y-7=-9(x-6)

y-7=-9x+54

**y=-9x+61**[add 7 to both sides]Checking that the point (6,7) is on the line:

Is 7 = -9(6) + 61 ?

7 = -54 + 61 ?

7 = 7 ? yes