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Ninth Grade (Grade 9) Nonlinear Equations and Functions Questions

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Grade 9 Nonlinear Equations and Functions CCSS: HSF-BF.A.1, HSF-BF.A.1a, HSF-LE.B.5
In the year 2000, the population of Virginia was about 7,400,000. Between the years 2000 and 2004, the population in Virginia grew at a rate of 5.4%. At this growth rate, what function gives the population x years after 2000?
  1. [math] f(x) = 7,400,000 (1 + .054)^x [/math]
  2. [math] f(x) = 7,400,000 (1 - .054)^x [/math]
  3. [math] f(x) = 7,400,000 (.054)^x [/math]
  4. [math] f(x) = 7,400,000x^(.054) [/math]
Grade 9 Nonlinear Equations and Functions CCSS: HSA-REI.A.2
[math](2x + 6)/(x - 6) = 3 [/math] if [math]x =[/math]
  1. 8
  2. 16
  3. 24
  4. 32
Grade 9 Nonlinear Equations and Functions CCSS: HSA-REI.A.2
Solve the equation [math] 5/(2x-3)=3/(x+5)[/math].
  1. [math]x=16[/math]
  2. [math]x=4[/math]
  3. [math]x=19[/math]
  4. [math]x=34[/math]
Grade 9 Nonlinear Equations and Functions
[math]4x^3 = - 1/54[/math]
  1. [math]- 1/3[/math]
  2. [math]- 1/6[/math]
  3. [math]- 1/9[/math]
  4. [math]- 1/12[/math]
Grade 9 Nonlinear Equations and Functions CCSS: HSA-REI.A.2
[math](10 - x)/(x - 8) = 0[/math] if [math]x =[/math]
  1. -10
  2. -8
  3. 8
  4. 10
Grade 9 Nonlinear Equations and Functions CCSS: HSA-CED.A.4
Solve [math]3xy-4=-xy+8[/math] for [math]x[/math].
  1. [math]x=3/y[/math]
  2. [math]x=2/y[/math]
  3. [math]x=-2/y[/math]
  4. [math]x=6/y[/math]
  5. [math]x=1/y[/math]
Grade 9 Nonlinear Equations and Functions
If [math]x^3 = -216, x = [/math]
  1. -72
  2. -24
  3. -8
  4. -6
Grade 9 Nonlinear Equations and Functions CCSS: HSA-CED.A.4
Solve for [math]x[/math].

[math]3xy+4=xy-8[/math]
  1. [math]x=-6/y[/math]
  2. [math]x=-2/y[/math]
  3. [math]x=3/y[/math]
  4. [math]x=2/y[/math]
  5. [math]x=6/y[/math]
Grade 9 Nonlinear Equations and Functions
[math]4x(5x^2-x)=20x^3-4x^2[/math]
  1. True
  2. False
Grade 9 Nonlinear Equations and Functions
[math]-x(-x-3)=x^2+3x[/math]
  1. True
  2. False
Grade 9 Nonlinear Equations and Functions CCSS: HSA-REI.A.2
[math](5y - 1)/(3y - 9) = 4[/math]

[math]y =[/math]
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