Quadratic STAAR Problems

find x for
2x²-8x-24=0

• x= 6, -2

• x= 2, -6

• x= 4, 2

• x= 2, 6

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Solve using the Quadratic Formula:
x² + 4x + 3 = 0

• x = 1 and x = 3

• x = 6 and x = -2

• x = -1 and x = -3

Identify a, b, and c in: x²−6x+14

• 3,5,9

• 1,-6,14

• 1,-6,-14

• 1,6,14

• a = 2 , b = 3, c = -5

• a = 2, b = -3, c = 5

• a = 2, b = -3, c = -5

• a = -2, b = 3, c = 5

Identify the 'b' value: y = 16x² -8x -24

• 16

• -8

• 8

• -24

What is the "c" value in the equation 4x² = 76 ?

• 4

• 76

• 0

• -76

An object is launched directly upward at 64 feet per second (ft/s) from an elevated platform. The height of the object represented by the equation

h(t) = –16t² + 64t + 80.

What is the height of the platform where the object was launched?

• 64 ft.

• 80 ft.

• 128 ft.

• 144 ft.

An object is launched directly upward at 64 feet per second (ft/s) from an elevated platform. The height of the object represented by the equation

h(t) = –16t² + 64t + 80.

What is the object's maximum height?

• 200 ft.

• 190 ft.

• 128 ft.

• 144 ft.