 New Zealand
Level 7 - NCEA Level 2

Characteristics and Domain and Range of Exponential Functions

Interactive practice questions

Which of the following scenarios involve a limiting value? Select all the correct options.

The amount of radiation in the air after a nuclear disaster if the radiation decreases by half every $100$100 years.

A

The number of employees in a company over the next $10$10 years.

B

Saving $\$100$$100 each week until the savings target is reached. C The value of a piece of machinery if it decreases by 30%30% each year. D The amount of radiation in the air after a nuclear disaster if the radiation decreases by half every 100100 years. A The number of employees in a company over the next 1010 years. B Saving \100$$100 each week until the savings target is reached.

C

The value of a piece of machinery if it decreases by $30%$30% each year.

D
Easy
Less than a minute

Consider the expression $3^x$3x.

The graph of $y=2^x$y=2x is displayed here.

Consider the function $y=3^x$y=3x.

Outcomes

M7-2

Display the graphs of linear and non-linear functions and connect the structure of the functions with their graphs

91257

Apply graphical methods in solving problems