The slope of the line passing through p and q is -3/5. What is the value of x?

P(1,4)
Q(x,1)

I got 6 but Im not sure

That's correct. :)

formula for slope:
m = (y2 - y1)/(x2 - x1)
where (x1,y1) and (x2,y2) are the points on the line. Substituting,
-3/5 = (4 - 1)/(1 - x)
-3(1-x) = 5(3)
-3 + 3x = 15
3x = 18
x = 6

hope this helps :3