(A2) 7-26-21 Lesson 1 Intro to Exponential Growth and Decays

Which of the following represents an exponential function?

• y = 2x + 8

• y = 5√x - 9

• y = -3^x - 8

• y = (x + 6)² - 9

What must be true for "a" and "b" for this to represent an exponential growth?

• a≠0, and 0<b<1

• a>0, and b>1

• 0<a<1, and b ≠ 0

• a>0, and b ≠ 0

Tags

CCSS.HSF-IF.C.8B

What must be true for "a" and "b" for this

to represent an exponential decay?

• a<0, and 0<b<1

• a>0, and 0<b<1

• a≠0, and 0<b<1

• a>0, and b>1

Tags

CCSS.HSF.LE.A.2

Which of the following does not represents an exponential decay?

• f(x) = 3(⁶/₅)^x

• f(x) = 3(⁵/₆)^x

• f(x) = 3(¹/₂)^x

• f(x) = 3(²/₃)^x

Tags

CCSS.HSF-IF.C.8B

Which of the following does represents an exponential decay?

• f(x) = ¹/₂(³/₂)^x

• f(x) = -2(⁵/₄)^x

• f(x) = ²/₃(¹/₂)^x

• f(x) = (⁷/₄)^x

Tags

CCSS.HSF-IF.C.8B

Which of the following does represents an exponential growth?

• f(x) = 6(²/₇)^x

• f(x) = -2(¹/₄)^x

• f(x) = ²/₃(¹/₂)^x

• f(x) = ¹/₂(³/₂)^x

Tags

CCSS.HSF-IF.C.8B

Which of the following does not represents an exponential growth?

• f(x) = ³/₄(8)^x

• f(x) = 2(¹/₆)^x

• f(x) = (⁵/₂)^x

• f(x) = 7(⁴/₃)^x

How do you know by the equation if it is an "exponential" equation?

• The independent variable "x" is to the 1st power.

• The independent variable "x" is on the top of a fraction.

• The independent variable "x" is on the bottom of a fraction.

• The independent variable "x" is up in the power.