Question

Use the graph of the function f(x) = (0.4)x − 1 to complete the sentence.

The graph of the function f(x) = (0.4)x − 1 has a y-intercept at (
,
) and a horizontal asymptote at y =
.

Answer 1

Likely the function was meant to be f(x) = (0.4)^x − 1 (exponential). In that case the y‑intercept is (0, 0) and the horizontal asymptote is y = −1.

(If it were the linear function f(x) = 0.4x − 1, the y‑intercept would be (0, −1) and there would be no horizontal asymptote.)