Solve Quadratic Functions

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6

• x = 3 and x = -6

• x = -9 and x = 2

• x = 9 and x = -2

Tags

CCSS.HSA-REI.B.4B

Solve

• -4, 2

• -2, 4

• -16

• -4

Tags

CCSS.HSA-REI.B.4B

• x = - 4 and x = - 5

• x = 20 and x = - 9

• x = 4 and x = 5

• x = - 4 and x = 5

Tags

CCSS.HSA-REI.B.4B

• x = - 5 or x = - 7

• x = 5 or x = 7

• x = - 35 or x = - 1

• x = - 9 or x = - 4

Tags

CCSS.HSA-REI.B.4B

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

A frog is sitting on the ground when he is scared by a big dog.

His movement is modeled by the equation h = -6t² + 6t where h is the frog's height at any given time, t .

How many seconds until the frog is back on the ground?

• 0.5 seconds

• 1 second

• 1.5 seconds

• 2 seconds

• 3 seconds

The quadratic function y = -2x² + 4x + 6 is pictured. What are the solutions to the equation 7.5 = -2x² + 4x + 6?

• x = 0.5

• x = 1.5

• x = 1

• x = 8

• x = 6

Which of the following is a solution to -x²-2x+8=0?

• (-1,9)

• (0,8)

• No solutions

• (-4,0)

What are the solutions to the quadratic equation?

• x = -4

• x = 1

• x = -1

• x = 2

• x = 4

The height of a water balloon that is launched into the air is given by

h(t) = -5x²+20x+25.

When will the balloon explode on the ground?

• 5 seconds

• 1 second

• 2 seconds

• 3 seconds