Quadratic Equations & Inequalities (Finals)

Which of the following is the standard form of a quadratic equation?

• $y=x^2$

• $y=ax^2+bx+c$

• $y=mx+b$

• $y=x$

 $3x^2-4$  is a quadratic equation.

• true

• false

Find the solutions of the quadratic equation  $x^2-5x+6=0$ . 

• x=1 or x=-6

• x=3 or x=2

• x=-3 or x= 2

• x=-1 or x=6

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation $x^2+4x-32=0$  

• x = 8 and x = -4

• x = -8 and x = 4

• x = -2 and x = 16

• x = 2 and x = -16

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic inequality
 $3x-x^2>0$  

• (−∞, 0) U (3, ∞)

• (−∞, - 3) U (0, ∞)

• (-3, 0)

• (0, 3)

Solve the quadratic inequality $6x^2-54\le0$  

• -3 ≤ x ≤ 3

• x ≤ -3 or x ≥ 3

• -3 < x < 3

• x < -3 or x > 3

Solve the quadratic inequality $-8x^2-9\ge0$  

• No real solution

• All real numbers

• x = 1.125

• x ≠ 1.125

Solve the quadratic inequality $4x^2-8x<77$   

• -3.5 < x < 5.5

• -2.5 < x < 7.5

• -4 < x < 8

• -6 < x < 8

What have you learned about yourself during these troubling times?

Tags

CCSS.RI.11-12.10

CCSS.RI.7.10

CCSS.RI.8.10

CCSS.RI.9-10.10

CCSS.RL. 11-12.9

Interpret then apply to your daily lives. :)

Tags

CCSS.RI.11-12.2

CCSS.RI.8.2

CCSS.RL.11-12.2

CCSS.RL.7.2

CCSS.RL.9-10.2