Quadratic Functions and Equations

What are the solutions for the equation 2x² + 16x = 18

• x = -1 and x = 9

• x = -9 and x = 1

• x = 2 and x= 18

• x = 2 and x = 16

Tags

CCSS.HSA-REI.B.4B

In the quadratic function x² - 6x + c what value of c would make q(x) a perfect square trinomial?

• 6

• 3

• 36

• 9

Tags

CCSS.HSA-REI.B.4B

What are the values of a, b, and c in the quadratic equation 3x² - 10 = -4x

• a = 3x² b = -10 c = -4x

• a = 3 b = -10 c = -4

• a = 3 b = -4 c = -10

• a = 3 b = 4 c = -10

What is the positive solution to the equation 0 = (1/5)x² - 5?

• (1/5)

• 1

• 5

• -5

Tags

CCSS.8.EE.A.2

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

• 1

• 3

• 2

• 5

Which of the following represents a quadratic function?

• 1

• 3

• 2

• 5

• 4