Showcase extra: the real practice and quiz players do not have this button.
Correct answer: (0, 8), (1, 4), (2, 2), (3, 1)
- Evaluate the function at each x: . . . .
- Plot the points: Plot , , , and . Each step right multiplies the -value by , the signature of exponential decay.
- Draw the curve through the points and mark the asymptote: Draw one smooth curve through the points. Moving right the outputs keep shrinking toward 0, so the graph approaches the -axis (the horizontal asymptote ) but never touches it. Every output stays positive, so the range is .
