Understanding Function Notation in Graphs

What does the notation f(x) represent in the context of graphs?

• A random number

• A constant value

• The independent variable

• The dependent variable

If f(2) = -1, what does this tell us about the graph at x = 2?

• The graph is at x = 1

• The graph is at y = 1

• The graph is at y = -1

• The graph is at x = -1

When given f(-3) = 0, what is the y-value on the graph at x = -3?

• y = 3

• y = 0

• y = -1

• y = -3

If f(x) = 2, which x values correspond to this function value?

• x = 2 and -2

• x = 5 and -5

• x = 3 and -3

• x = 1 and -1

For f(x) = -3, what is the x value when the function value is -3?

• x = 0

• x = -3

• x = -1

• x = 3