Function Review AK - Commack Schools · Title: Function Review AK
Function(Review(...
Transcript of Function(Review(...
Function Review Name: ____________________________ Date: _________________________
I. Graph each function using at least 4 points. Name the type of function. State the domain and range, end behavior, and intervals of increase and decrease. 1) f(x) = -‐5 2) f(x) = (x – 2)2 + 3 3) f(x) = 4x + 2 4) f(x) = !
! (only name and state the domain & range)
5) f(x) = 3x 6) f(x) = 𝑥 + 5 7) f(x) = 4x3 8) f(x) = 𝑥!
9) f(x) = 𝑥 − 3 10) f(x) = 4 , 𝑖𝑓 𝑥 > 1
𝑥 – 2, 𝑖𝑓 𝑥 ≤ 1 (only name and state the domain & range)
II. Describe the shifts from the parent graph. 11) f(x) = 3(𝑥 − 2)! + 4 ________________________________________________________ 12) f(x) = !
!𝑥 + 2 − 3 ________________________________________________________
13) f(x) = 𝑚(𝑥 – 𝑛)! + 𝑝 ________________________________________________________ 0 < 𝑚 < 1 III. Name the point(s) of intersection. 14) 𝑦 = 𝑥 − 4 15) 3𝑥 + 𝑦 = 12 3𝑦 = 3𝑥 + 9 𝑦 = 𝑥 + 2 ____________________________ _____________________________ 16) 𝑦 = 𝑥! – 3 17) y = 𝑥 − 3 y = −(𝑥 – 2)! y = 2𝑥 + 3 ____________________________ _____________________________ IV. Solve by the indicated method. 18) 3𝑥 – 𝑦 = 6 (Elimination) 19) 𝑦 = 4𝑥 – 2 (Substitution) −3𝑥 – 𝑦 = 10 𝑥 + 2𝑦 = 12 ____________________________ _____________________________
Function Review Name: ____________________________ Date: _________________________
20) The school that Stefan goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 3 senior citizen tickets and 1 child ticket for a total of $38. The school took in $52 on the second day by selling 3 senior citizen tickets and 2 child tickets. Find the price of a senior citizen ticket and the price of a child ticket.
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21) Matt and Ming are selling fruit for a school fundraiser. Customers can buy small boxes of oranges and large boxes of oranges. Matt sold 3 small boxes of oranges and 14 large boxes of oranges for a total of $203. Ming sold 11 small boxes of oranges and 11 large boxes of oranges for a total of $220. Find the cost each of one small box of oranges and one large box of oranges.
___________________________________________ 22) An object is launched at 19.6 meters per second (m/s) from a 58.8-‐meter tall platform. The equation for the object's height s at time t seconds after launch is s(t) = –4.9t2 + 19.6t + 58.8, where s is in meters. When does the object strike the ground? ______________________________________________ 23) An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. What will be the object's maximum height? When will it attain this height? Use the function s(t) = –16t2 + 64t + 80 ______________________________________________