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  • Linear inequalities
  • Solving linear equations and inequalities
  • Solving elementary inequalities

Solving elementary inequalities

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  • Question 1:
    1 pts
    		Solve inequality x−7>2.x-7>2.
    x>−5x>-5
    x>9x>9
    x<9x<9
    x<−5x<-5
  • Question 2:
    1 pts
    		Solve inequality x+23<2.x+ \dfrac{2}{3}<2.

    x>43x> \dfrac{4}{3}

    x>23x>\dfrac{2}{3}

    x<23x< \dfrac{2}{3}

    x<43x< \dfrac{4}{3}

  • Question 3:
    1 pts
    		Solve inequality −3x+5≤26.-3x+5\leq 26.
  • Question 4:
    1 pts
    		The solution of inequalities −3a+7≤4-3a+7\leq 4 is a≤1.a\leq 1.
  • Question 5:
    2 pts
    		Give the inequality which produces the range shown in the figure.
    x<−5x<-5
    x>−5x>-5
    x≤−5x\leq -5
    x≥−5x\geq -5
  • Question 6:
    2 pts
    		Solve inequality 3x−6−8x<44.3x-6-8x<44.

    x<−10x<-10

    x>−10x>-10

    x≥−10x\geq -10

    x≤−10x\leq -10

  • Question 7:
    2 pts
    		Solve inequality −4x+9≥x−21.-4x+9\geq x-21.
  • Question 8:
    2 pts
    		Solve inequality 2x+3>−6+2x.2x+3>-6+2x.
  • Question 9:
    3 pts
    		Solve inequality 3x−45≥−x3x-\dfrac{4}{5}\geq -x

    x<15x<\dfrac{1}{5}

    x>15x> \dfrac{1}{5}

    x≥15x\geq \dfrac{1}{5}

    x≤15x\leq \dfrac{1}{5}

  • Question 10:
    3 pts
    		Solve inequality −0.12x+3.4<0.84+5x-0.12x+3.4<0.84+5x
    x>12x>\frac{1}{2}
    x<12x<\frac{1}{2}
    x>15x>\frac{1}{5}
    x<15x<\frac{1}{5}
  • Question 11:
    3 pts
    		Solve inequality −0.5x−3.69<x−1.9−2.39-0.5x-3.69 < x-1.9-2.39

    x>−0.4x>-0.4

    x<0.4x<0.4

    x>0.4x>0.4

    none of these

  • Question 12:
    3 pts
    		Solve inequality 1≤7+2x≤91\leq 7+2x \leq 9

    x∈[−3,1]x \in [-3,1]

    x∈(−3,1]x \in (-3,1]

    x∈[−3,1)x \in [-3,1)

    x∈(−3,1)x \in (-3,1)

Linear equations

Linear inequalities

Graphing functions