Answer:
y-1 = -3(x-9)
Step-by-step explanation:
First we need to find the slope
m = (y2-y1)/(x2-x1)
= (16-1)/(4-9)
= 15/-5
= -3
Then we can use point slope form to make an equation for the line
y-y1 = m(x-x1)
y-1 = -3(x-9)
We could also use the other point
y-16 = -3(x-4)
