Answer:
x = -3: is not a function
y = 10: is a function
3x + 2x = 3: is not a function
Step-by-step explanation:
A function is a set of ordered pairs in which no first coordinate, or x-values, repeat. We can use this to determine the following:
x = -3 is not a function as the x will be repeating for each ordered pair.
y = 10 is a function because though the y is repeating, the x is not.
3x + 2x = 3 is not a function because you can solve it to get x = 0.6 (add 3x to 2x, you get 5x = 3, divide by 5 on both sides and x = 3/5 = 0.6).
