1 / 5

Sec 3.3 Function Notation

Sec 3.3 Function Notation. Function Notation -. Any linear function can be written in the form f ( x ) = mx + b. f ( x ) does NOT mean “ f times x ” f ( x ) is read as “ f of x ” f ( x ) means the same as y.

delphia
Télécharger la présentation

Sec 3.3 Function Notation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Sec 3.3Function Notation

  2. Function Notation - Any linear function can be written in the form f(x) = mx + b f(x) does NOT mean “f times x” f(x) is read as “f of x” f(x) means the same as y Ex #1: Find f(–4), f(0), and f(3) for the function: f(x) = 2x + 7 f(–4 ) means to input –4 for x in the function f(x) = 2x + 7 f(x) = 2x + 7 f(–4) = 2(–4) + 7 = –8 + 7 = –1 f(–4) = –1 f(x) = 2x + 7 f(0) = 2(0) + 7 = 0 + 7 = 7 f(0) = 7 f(x) = 2x + 7 f(3) = 2(3) + 7 = 6 + 7 = 13 f(3) = 13

  3. Interpreting Function Notation Ex #2 Let f(x) be the outside temperature (oF) xhours after 6:00 am. Explain the meaning of each statement. a) f(0) The temperature at 6:00 am b) f(6) = n The temperature at noon is noF c) f(3) <f(6) The temperature at 9:00 am is colder than the temperature at noon.

  4. Using Function Notation to Solve and Graph Ex #3 Using the function , find the value of x when h(x) = –7. Ex #4 Graph f(x) = 2x +5

  5. Ex #5 The graph below shows the number of miles a helicopter is from its destination after x hours on its first flight. On its second flight the helicopter travels 50 miles further and increases its speed by 25 mph. The function f(x) = 350 – 125x represents the second flight, where f(x) is the number of miles the helicopter is from its destination after x hours. Which flight takes less time? Find out how long it takes the second flight to get to its destination by using f(x) = First Flight 0 Distance (miles) The second flight takes less time (2.8 hours compared to 3 hours) Hours

More Related