ningontario.cadale/content/1 22SB 06 3MewConter#99662 442/View Assignment Textbo

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ningontario.cadale/content/1 22SB 06 3MewConter#99662 442/View Assignment Textbook Practice Assignment " Nelson: Papo 255. #3-50 10, 13, 15, 16 . McGraw-Hill Ryerson: Page 215, # 1, 3, 5-11.6, 1925 31, 33 Complete the following questions and submit them to the Lesson 7 Assignment Dropbex 1 Find the equation of te iverse for each function State which of the tollowing inverses are funchions 2 For each function graph the function and ts merse ir ?e rverse is a treton, stale tie doman and rage a fix)23x-4 Activity Details You have viewed this tapic

Explanation / Answer

1.a.f(x) = y= (1/2)x -3

Switching x and y and solving for y

x=(1/2)y-3

x+3 =(1/2)y

y=2x+6

f-1(x)= 2x+6 which is a function

b. f(x) = y = 4x2-5

Switching x and y and solving for y

x = 4y2-5

y2=(x+5)/4

y=f-1(x) = +-sqrt(x+5)/2 which is not a function

c.A(r) =y= pi r2

switching r and y and solving for y

r = pi y2

y2= r/pi

y= A-1(r) =+- sqrt(r/pi) which is not a function .

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