Evaluating Functions Answers

On a coordinate plane, a red curved line with an upward arc, labeled g of x, crosses the x-axis at (negative 2, 0), and the y-axis at (0, 4). A blue curved line with an upward arc, labeled f of x, crosses the y-axis at (0, 4) and the x-axis at (2, 0).

Two functions are graphed on the coordinate plane.

Which represents the inverse of the function f(x) = 4x?

If f(x) = 6x – 4, what is f(x) when x = 8?

The table represents the function f(x).

A graph shows the number of texts, numbered 10 to 100, on the x-axis, and the total cost in dollars, numbered 3 to 27, on the y-axis. A straight red line with a positive slope, labeled Emilia, begins at (0, 10), and a straight blue line with a positive slope, labeled Hiroto, begins at (0, 20). Both lines intersect at point (50, 22.5).

Which statement is true regarding the graphed functions?

The functions f(x) and g(x) are graphed.

What is the inverse of the function f(x) = x + 2?