110 likes | 255 Views
Function graphs & looking at 3 types of functions. Explore worksheet. Let’s look at some applications…. The number of miles the car travels is a function of the number of hours the car is driven at this rate. Write a function equation that models this function. f(x) = 65x or m(h) = 65h.
E N D
The number of miles the car travels is a function of the number of hours the car is driven at this rate. Write a function equation that models this function. f(x) = 65x or m(h) = 65h Example: a car travels at a steady rate of 65 miles per hour.
f(x) = 65x • Is this linear? • How do you know? • Evaluate f(3) • What is the meaning of f(3)? • Can you give an example of an evaluating problem that doesn’t make sense for this problem situation?
The height of a flea is a function of the time after it starts to jump. The function equation for a particular jumping flea can be modeled with the equation: t = time in seconds & h = height in feet h(t) = -16t2 + 6t Example: the height of a flea jumping can be described as a function.
What type of function is this? How do you know? What does the graph of the function look like? Jumping flea function h(t) = -16t2 + 6t
Evaluate this function for the following times: h (0.2) h (0.3) h (0.4) What statements can you make from the results you found? Jumping flea function h(t) = -16t2 + 6t
Brandon started with $500 and his account pays 5% annual interest. The function equation that models the amount of money in Brandon’s account is: A (t) = 500 (1.05)t The amount of money in a savings account is a function of the time (in years) the money is in the account.
What type of function is this? How do you know? What does the graph of the function look like? Brandon’s Savings Account Function: A (t) = 500 (1.05)t
Evaluate this function for the following times (careful…) A (2 years) A (1 decade) A (18 months) A (-5) What statements can you make from the results you found? Brandon’s Savings Account Function: A (t) = 500 (1.05)t Where t = time in YEARS