Answer:
Subtraction property of equality
Step-by-step explanation:
The subtraction property of equality refers to balancing an equation by using the same mathematical operation on both sides.
Y=3x−9
y=3(0)-9
y=9
Now plug in y to solve for x.
y=3x−9
9=3x-9
18=3x
6=x
The x-intercept is (6,0)
Here it is.. you need to calculate some numbers
Answer:

Step-by-step explanation:

1) True. In a function, each x value has exactly one y value.
2) False. For example

is a function, but is not linear. It is represented by a parabola.