Quadratics

Does the equation open or or down? 
Y = -3x² +7x - 2

• up
• down

Tags

CCSS.HSF-IF.C.7A

Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x²+2x-3

• Minimum value, because the a value is positive
• Maximum value, because the b value is positive
• Maximum value, because the a value is positive
• Minimum value, because the c value is negative

What is the domain of the function?

• D:{ x > 3}
• D:{x < 3}
• D:{all real numbers}
• D:{ -1 < x < 5}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the y-intercept of 
f(x)=2x² + 4x + 6

• (6 , 0)
• (-6 , 0)
• (0, -6)
• (0 , 6)

Tags

CCSS.HSF-IF.C.7A

INLINE CHOICE EXAMPLE 3

The graph represents a quadratic function.

Select ONE correct answer in each box to complete the sentence.

The function has a ​ (a)   value of (b)   .

• maximum
• 4
• minimum
• -6
• 3
• 2

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

Tags

CCSS.HSF-IF.C.7A

#10) The area of a floor is represented by the expression 2x² + 2x – 24.  If the length of the floor is (2x – 6), what is the width?

• (x + 4)
• (x - 4)
• (2x + 4)
• (2x - 4)

Simplify the expression.
-3x²( 7x² - x + 4)

• -21x⁴ + 3x³ -12x²
• 7x² - x + 4 (-3x²)
• 21x⁴ + 3x³ + 12x²
• -12x² + 3x³ -21x⁴

Tags

CCSS.HSA.APR.A.1

Find the sum.
(2x² + 5x - 7) + (3 - 4x² + 6x)

• 2x² + 3x + 1
• -2x² - 11x - 4
• 2x² + 5x - 7
• -2x² + 11x - 4

Tags

CCSS.HSA.APR.A.1

Factor:  6x² + 9x

• (6x + 1)(x + 3)
• (3x + 1)(2x + 3)
• 3x(2x + 3)
• 6x(x + 3)