#### Answer

$y = 3x - 18$

#### Work Step by Step

The Slope is 3, the X-Intercept is 6.
So we know that m=3, and the line passes through (6,0) [X-Intercept is 6]:
Now with a point and the slope we can use the formula:
$y - Y_1 = m(x - X_1)$
Let's replace the values with the point and the slope:
$y - 0 =3 (x - 6)$
$y = 3x - 18$
$y = x + 5$