CCSS.Math.Content.HSA.REI.B.4

Factor:
2x² + 11x + 14

• (x + 7)(2x + 2)
• (x + 2)(2x + 7)
• (x + 14)(2x + 1)
• (x + 1)(2x + 14)

Tags

CCSS.Math.Content.HSA.REI.B.4

Factor
d² - 10d + 25

• (d + 5) (d - 5)
• (d - 15) (d + 10)
• (d + 5) (d - 20)
• (d - 5) (d - 5)

Tags

CCSS.Math.Content.HSA.REI.B.4

When do you use the plus or minus symbol?
±

• After taking the square root of both sides
• After adding the square to both sides
• After taking half of b
• After setting the equation equal to zero

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve
x² + 7x + 12 = 0

• x = -2, x = -10
• x = -3, x = -4
• x = -4, x = -5
• x = -4, x = -6

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the standard form for a Quadratic?

• ax²+ bx = - c
• x = -b ± √(b²-4ac) / 2a
• ax² + bx + c
• y = mx + b

Tags

CCSS.Math.Content.HSA.REI.B.4

Can 0 be a root of a quadratic equation?

• Yes. Possible
• No. Not posssible

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the discriminant of 6x² − 2x − 3 = 0

• 76

• 29

• 68

• none of these

Tags

CCSS.Math.Content.HSA.REI.B.4

3 What is the discriminant of

-2x² − x − 1 = 0 ?

• 76

• -7

• 9

• none of these

Tags

CCSS.Math.Content.HSA.REI.B.4

When solving the equation x² - 12x + 4 = 20

by completing the square , what values would go in the two blanks?

(________)² = ______

• x - 12; 42

• x - 6; 16

• x - 6; 42

• x - 6; 56

Tags

CCSS.Math.Content.HSA.REI.B.4

A ball was launched into the air with an initial upward velocity of 100 ft/s. The ball was 5 ft off of the ground when it was launched.The equation for the ball is h(t)= -16t²+100t+5, approximately what is the maximum height?

• 3 feet

• 100 feet

• 161 feet

• 5 feet

Tags

CCSS.Math.Content.HSA.REI.B.4