Day 3: Linear Factors & Zeros

Select ALL the Zeros (X-intercepts, Solutions) of this Quadratic Function.

Tags

AI.9.7.A

• x = -2

• x = 12

• x = -6

• x = -12

• x = -4

So if  (x + 7)(x + 4) then the zeroes are...

• 7 and 4
• 7 and -4
• -7 and 4
• -7 and -4

Which statement is true for the function
x² + 13x + 22

• The zeroes are -2 and -11 because the factors are (x + 2)(x + 11)
• The zeroes are -2 and 11 because the factors are (x + 2)(x - 11)
• The zeroes are 2 and -11 because the factors are (x - 2)(x + 11)
• The zeroes are 2 and 11 because the factors are (x - 2)(x - 11)

Which statement is true for the function
x² + 4x - 45

• The zeroes are -5 and -9 because the factors are (x + 5)(x +9)
• The zeroes are -5 and 9 because the factors are (x + 5)(x - 9)
• The zeroes are 5 and -9 because the factors are (x - 5)(x + 9)
• The zeroes are 5 and 9 because the factors are (x - 5)(x - 9)

So if  (2x + 7)(3x + 4) then the zeroes are...

• 7/2 and 4/3
• 7/2 and -4/3
• -7/2 and 4/3
• -7/2 and -4/3

Which statement is true for the function
5x² - 28x + 15

• The zeroes are -⅗ and -5 because the factors are (5x + 3)(x + 5)
• The zeroes are -⅗ and 5 because the factors are (5x + 3)(x - 5)
• The zeroes are ⅗ and -5 because the factors are (5x - 3)(x + 5)
• The zeroes are ⅗ and 5 because the factors are (5x - 3)(x - 5)

If given the equation
y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Which function is equivalent to
y = x² - 6x + 10?

• y = (x + 3)² - 1
• y = (x - 3)² + 1
• y = (x + 6)² - 10
• y = (x - 6)² + 10

If given the equation y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)