Solution:
Given, x=-3, y=6, and z=4
Putting these values in the given equation:
-15+(-x)+y
= -15+(-(-3)+6
= -15+3+6
= -15+9
= -6
First set change the function f(x) to y so
that it would be

Then set y = 0

Then solve for x
X = - 3
To graph it, just plot the point (-3,0) on the x-axis
If you are looking to turn it into an expression:
1/3w+16
or it could possibly be (if you are looking at inequalities):
1/3w<16
It’s c I just google the answer and did the test it’s c