Question

Determine whether the given point lies on the graph of the inequality.

(-1,-3); -x-6y < 19.

in this case, is the point on the graph (yes or no)

Answer 1

-x - 6y < 19.

Point ( -1, -3) ⇔ x = -1 , y = -3
instead of the variables you need to put the values ​​of x and y ( coordinates of the point )
- (-1) - 6*(-3) < 19

we calculate

1 + 18 < 19 record turns mushy

Proposal
the point does not belong to the graph