Nonlinear Equations in One Variable and Systems of Equations

SAT Math· difficulty 4/5

The equation x2+6x+c=0x^2 + 6x + c = 0 has two distinct real solutions when:

  • A

    c<9c < 9

    check_circle
  • B

    c>9c > 9

  • C

    c=9c = 9

  • D

    c9c \le 9

Explanation

Discriminant >0> 0: 364c>036 - 4c > 0, c<9c < 9.

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

Related questions