Question

The table below represents a function. Which of the following equations could be its function rule? PLS HELP!!

x y
0 0
1 -3
3 -9
-2 6
y = x/-3
y = x
y = 3 x
y = -3 x

Answer 1

y = -3x

Explanation:

It is easiest to try the answers for x=1.

a) y = 1/-3 = -1/3 ≠ -3

b) y = 1 ≠-3

c) y = 3(1) = 3 ≠ -3

d) y = -3(1) = -3 . . . . . this rule matches the table