9-2-2 - 2-2 Exponential Functions Graph: Graph: 2-2 f(x) =...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2-2 Exponential Functions Graph: Graph: 2-2 f(x) = 2x f(x) = 2-x p. 1 Properties of the exponential functions: • f(x) = bx and f(x) = b-x, -∞ < x < ∞ • b is called the base • can always make b > 1 x 1 = 2-x e.g. f(x) = 2 • domain: (-∞, ∞) range: (0, ∞) • continuous • f(x) = bx is an increasing function • f(x) = b-x is a decreasing function • y-intercept: y = 1 • no x-intercepts; graph always above x axis • x-axis is an asymptote: • as x + ∞ for f(x) = b-x • as x - ∞ for f(x) = bx • bx = by x = y (one-to-one property) 2-2 p. 2 ...
View Full Document

Page1 / 2

9-2-2 - 2-2 Exponential Functions Graph: Graph: 2-2 f(x) =...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online