A line has a slope of -3/17 and its y-intercept is (0,18) . What is its x-intercept?

y=-3/17x+18

0=-3/17x+18

-18=-3/17x

-18*-17/3=x

x=6*17

x=102

point slope form of the line is (y-18) = -3/17 (x) sub in 0 for y

-18 = - 3/17 x

x = 17/3 * 18 = 102