Use the graph to determine the function's domain and range. explain your answer.

assume that the graph continues past the screen shot.

Domain (x, input, and independent variable are other names.)
Determine how far above and below 0 the line graphed goes on the x-axis. Since it can go infinitely above and below 0, the domain = -∞ ≤ x ≤ ∞ = ∞

Range (y, output, and dependent variable are other names.)
Determine how far above and below 0 the line graphed goes on the y-axis. Since it can only go to +2 above 0 and infinitely below 0, the range = -∞ ≤ y ≤ 2