Linear Inequalities in One or Two Variables

SAT Math· difficulty 4/5

For what values of kk does the inequality kx+6>4kx + 6 > 4 have solution x>2kx > -\dfrac{2}{k}?

  • A

    k>0k > 0

    check_circle
  • B

    k<0k < 0

  • C

    k=0k = 0

  • D

    All real kk

Explanation

kx>2kx > -2. Dividing by kk keeps the inequality only if k>0k > 0.

Want 10 more like this — adaptive to your weak spots?

Related questions