Which situation could be modeled by using a linear function ?
1) a bank account balance that grows at a rate of 5% per year compounded annually
2) a population of bacteria that doubles every 4.5 hours
3) the cost of the cell phone service that charges a base amount plus 20 cents per minute
3) the concentration of medicine in a persons body that decays by a factor of one- third every hour

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

State if the two triangles are congruent. if they are, state how you know?

Fast! find the length of cu. the triangles are similar. show your work.