Quadratics through Quiz 1

Which of the following is a factor of 2x² + 7x - 9?

• 2x + 9
• x + 1
• 2x + 3
• 2x - 3

Find all possible values of "b" for
x² + bx + 32.

• 33; 18; 12
• 33; -33; 18; -18; 12; -12
• 1; 2; 4; 8; 16; 32
• 3; 12; 48

Which of the following values for "b" will make x² + bx + 8 factorable?  

• 2
• 4
• 6
• 10

A rectangle has an area of 2x² – 19x +45 ft². What are the dimensions of the rectangle?  

• (2x - 9)(x - 5)
• (2x + 9)(x + 5)
• (2x - 5)(x - 9)
• (2x - 5)(x + 9)

If a closet has length of
(x + 2) ft and width of
(3x - 7) ft, what is the area of the closet?

• 3x² + x - 14
• 3x² - 13x - 14
• 3x² - x - 14
• 3x² +13x - 14

Tags

CCSS.HSA.APR.A.1

A rectangle has an area of 4x² +19x + 12 and a length of (x + 4). What is the width?

• 4x - 3
• 4x + 3
• 2x + 6
• 2x + 3

Tags

CCSS.HSA.APR.D.6

If a trinomial has a positive "c" value, what do you know about the signs in its binomial factors?

• Both signs are positive.
• Both signs are negative. 
• One sign is positive and one is negative.
• The signs are the same, both + or both -

If a trinomial has a negative "c" value, what do you know about the signs in its binomial factors.

• The signs are both +. 
• The signs are one + and one -
• The signs are both -

Find the width for a rectangle that has an area of 2x² + 6x – 8 and length of 2x – 2

• x + 4
• 2x² + 4x – 6
• x - 4
• x + 4 - 16/(2x-2)

Tags

CCSS.HSA.APR.D.6

A rectangular garden has an area of 4x² - 64. What are the dimensions of the garden?
(Hint: Factor)

• (2x + 8) by (2x - 8)
• (2x + 8) by (2x + 8)
• (2x - 8) by (2x - 8)
• Prime