Answer:
D -13
Step-by-step explanation:
5x - 3y - z if x = -2, y = 2, and z = -3
5x - 3y - z =
= 5(-2) - 3(2) - (-3)
= -10 - 6 + 3
= -16 + 3
= -13
Answer:
(3, -9)
Step-by-step explanation:
To reflect an image across the line y = x, (x, y) → (y, x).
(-9, 3) → (3, -9)
Answer:
Yes, the set of points is a function.
Step-by-step explanation:
A function only passes through any given y value once. None of the y values (the second number in the form (x, y)) are the same, so the set of points is indeed a function.
