Answer:
point slope form: y - 6 = -5x + 45
slope intercept form: y = -5x + 51
Explanation:
point slope form: y - y1 = m (x - x1)
replace y1 with the y point (6), m with the slope (-5), and x1 with the x point (9)
and you have your point slope form:
y - 6 = -5 (x - 9)
slope intercept: y = mx + b
just simplify the point slope equation by distributing -5 to the x and -9
y - 6 = -5x + 45
add the 6 to both sides
and you have your slope intercept form:
y = -5x + 51