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- 1. Multiple Choice
a) Is this graph a function or not a function? Tell why.
b) Does this graph have an inverse? How do you know.Function; yesNot a Function; yesfunction; nonot a function;no - 2. Multiple ChoiceWhich ordered pair below would prevent this table from being a function?(10, 10)(2, 4)(6, 1)(-2, 0)
- 3. Multiple ChoiceEvaluate
f(x) = l 4x−3 l ,
if f(x) = 17.x = 5 and x =-3.5x = 0 and x = -5x = 10 and x = -10No Solution - 4. Multiple ChoiceEvaluate f(-2) if f(x) = x2+ 3-117-7
- 5. Multiple ChoiceWhat is the solution to this system?
x= 7 - 2y
2x + y = 5(-1,4)(4,-1)(1,3)(3,1) - 6. Multiple ChoiceIf a system of equations has no solution, what does the graph look like?intersecting linesparallel linesskew linesthe same line (coinciding lines)
- 7. Multiple ChoiceIf a system of equations has infinitely many solutions, what does the graph look like?intersecting linesparallel linesskew linesthe same line (coinciding lines)
- 8. Multiple ChoiceWhich of the following is NOT TRUE about inverse functions?Both function compositions = 1The graphs are reflected across the line y = xBoth function compositions = xf(x) contains (x, y) and f-1(x) contains (y, x)
- 9. Multiple ChoiceSolve by elimination
-12x-4y= -8
-6x-2y= -4no solution(0,0)infinite solutions(4,0) - 10. Multiple ChoiceWhat is the first step in finding the equation of the inverse of a function?get x by itselfswitch x and ysolve for ywrite the function in inverse function notation
- 11. Multiple ChoiceThe inverse has been reflected over which line?y = xy =1y = 0y = x + 1
- 12. Multiple ChoiceWhat is the inverse of the function
f(x) = 2x + 4 ?f-1(x) = 4(x -2)f-1(x) = (x-4)/2f-1(x) = x/2 - 4f-1(x) = x/4 + 2 - 13. Multiple Choiceis the inverse function found correctly?yesno
- 14. Multiple ChoiceGiven
f(x) = 3x2 + 7x and g(x) = 2x2 - x - 1, find (f + g)(x).11x2 - 15x4 + 6x2 - 15x2 + 6x - 15x2 + 8x - 1 - 15. Multiple Choicef(x) = 3x2 + 7x and g(x) = 2x2 - x - 1, find (f - g)(x).x2 + 8x + 1x2 + 6x - 15x2 + 8x - 1x2 + 8x -1
- 16. Multiple ChoiceWhat is g(7) if:-17-131317
- 17. Multiple ChoiceUsing the pictured graph, what is f(-3)?-3-113
- 18. Multiple ChoiceABCD
- 19. Multiple Choicep(x) = 3x + 4
q(x) = 2x2
Find q(p(x))6x2 + 418x2 + 48x + 3218x2 + 32None of these. - 20. Multiple Choicef(x) = 3x + 10
g(x) = x - 2
Find f(g(0))164-4None of these. - 21. Multiple ChoiceBonus:(5 points-all work shown and accurate)√19√1313
- Answer choicesTagsAnswer choicesTags